19894198480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:346

約数の個数: 240

約数和(自身を含む): 52099634160

約数和(自身を除く): 32205435680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 89, 104, 130, 148, 157, 178, 185, 208, 260, 296, 314, 356, 370, 445, 481, 520, 592, 628, 712, 740, 785, 890, 962, 1040, 1157, 1256, 1369, 1424, 1480, 1570, 1780, 1924, 2041, 2314, 2405, 2512, 2738, 2960, 3140, 3293, 3560, 3848, 4082, 4628, 4810, 5476, 5785, 5809, 6280, 6586, 6845, 7120, 7696, 8164, 9256, 9620, 10205, 10952, 11570, 11618, 12560, 13172, 13690, 13973, 16328, 16465, 17797, 18512, 19240, 20410, 21904, 23140, 23236, 26344, 27380, 27946, 29045, 32656, 32930, 35594, 38480, 40820, 42809, 46280, 46472, 52688, 54760, 55892, 58090, 65860, 69865, 71188, 75517, 81640, 85618, 88985, 92560, 92944, 109520, 111784, 116180, 121841, 131720, 139730, 142376, 151034, 163280, 171236, 177970, 181649, 214045, 214933, 223568, 232360, 243682, 263440, 279460, 284752, 302068, 342472, 355940, 363298, 377585, 428090, 429866, 464720, 487364, 517001, 558920, 604136, 609205, 684944, 711880, 726596, 755170, 856180, 859732, 908245, 974728, 1034002, 1074665, 1117840, 1208272, 1218410, 1423760, 1453192, 1510340, 1583933, 1712360, 1719464, 1816490, 1949456, 2068004, 2149330, 2436820, 2585005, 2794129, 2906384, 3020680, 3167866, 3424720, 3438928, 3632980, 4136008, 4298660, 4873640, 5170010, 5588258, 6041360, 6335732, 6721013, 7265960, 7919665, 8272016, 8597320, 9747280, 10340020, 11176516, 12671464, 13442026, 13970645, 14531920, 15839330, 17194640, 19129037, 20680040, 22353032, 25342928, 26884052, 27941290, 31678660, 33605065, 38258074, 41360080, 44706064, 53768104, 55882580, 63357320, 67210130, 76516148, 95645185, 107536208, 111765160, 126714640, 134420260, 153032296, 191290370, 223530320, 248677481, 268840520, 306064592, 382580740, 497354962, 537681040, 765161480, 994709924, 1243387405, 1530322960, 1989419848, 2486774810, 3978839696, 4973549620, 9947099240, 19894198480]

約数ペア:

[(1, 19894198480), (2, 9947099240), (4, 4973549620), (5, 3978839696), (8, 2486774810), (10, 1989419848), (13, 1530322960), (16, 1243387405), (20, 994709924), (26, 765161480), (37, 537681040), (40, 497354962), (52, 382580740), (65, 306064592), (74, 268840520), (80, 248677481), (89, 223530320), (104, 191290370), (130, 153032296), (148, 134420260), (157, 126714640), (178, 111765160), (185, 107536208), (208, 95645185), (260, 76516148), (296, 67210130), (314, 63357320), (356, 55882580), (370, 53768104), (445, 44706064), (481, 41360080), (520, 38258074), (592, 33605065), (628, 31678660), (712, 27941290), (740, 26884052), (785, 25342928), (890, 22353032), (962, 20680040), (1040, 19129037), (1157, 17194640), (1256, 15839330), (1369, 14531920), (1424, 13970645), (1480, 13442026), (1570, 12671464), (1780, 11176516), (1924, 10340020), (2041, 9747280), (2314, 8597320), (2405, 8272016), (2512, 7919665), (2738, 7265960), (2960, 6721013), (3140, 6335732), (3293, 6041360), (3560, 5588258), (3848, 5170010), (4082, 4873640), (4628, 4298660), (4810, 4136008), (5476, 3632980), (5785, 3438928), (5809, 3424720), (6280, 3167866), (6586, 3020680), (6845, 2906384), (7120, 2794129), (7696, 2585005), (8164, 2436820), (9256, 2149330), (9620, 2068004), (10205, 1949456), (10952, 1816490), (11570, 1719464), (11618, 1712360), (12560, 1583933), (13172, 1510340), (13690, 1453192), (13973, 1423760), (16328, 1218410), (16465, 1208272), (17797, 1117840), (18512, 1074665), (19240, 1034002), (20410, 974728), (21904, 908245), (23140, 859732), (23236, 856180), (26344, 755170), (27380, 726596), (27946, 711880), (29045, 684944), (32656, 609205), (32930, 604136), (35594, 558920), (38480, 517001), (40820, 487364), (42809, 464720), (46280, 429866), (46472, 428090), (52688, 377585), (54760, 363298), (55892, 355940), (58090, 342472), (65860, 302068), (69865, 284752), (71188, 279460), (75517, 263440), (81640, 243682), (85618, 232360), (88985, 223568), (92560, 214933), (92944, 214045), (109520, 181649), (111784, 177970), (116180, 171236), (121841, 163280), (131720, 151034), (139730, 142376)]