20218558480

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{367}}^1\times {\mathrm{379}}^1$

素因数の和:861

約数の個数: 160

約数和(自身を含む): 49939660800

約数和(自身を除く): 29721102320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 79, 80, 92, 115, 158, 184, 230, 316, 367, 368, 379, 395, 460, 632, 734, 758, 790, 920, 1264, 1468, 1516, 1580, 1817, 1835, 1840, 1895, 2936, 3032, 3160, 3634, 3670, 3790, 5872, 6064, 6320, 7268, 7340, 7580, 8441, 8717, 9085, 14536, 14680, 15160, 16882, 17434, 18170, 28993, 29072, 29360, 29941, 30320, 33764, 34868, 36340, 42205, 43585, 57986, 59882, 67528, 69736, 72680, 84410, 87170, 115972, 119764, 135056, 139093, 139472, 144965, 145360, 149705, 168820, 174340, 231944, 239528, 278186, 289930, 299410, 337640, 348680, 463888, 479056, 556372, 579860, 598820, 666839, 675280, 688643, 695465, 697360, 1112744, 1159720, 1197640, 1333678, 1377286, 1390930, 2225488, 2319440, 2395280, 2667356, 2754572, 2781860, 3199139, 3334195, 3443215, 5334712, 5509144, 5563720, 6398278, 6668390, 6886430, 10669424, 10988347, 11018288, 11127440, 12796556, 13336780, 13772860, 15995695, 21976694, 25593112, 26673560, 27545720, 31991390, 43953388, 51186224, 53347120, 54941735, 55091440, 63982780, 87906776, 109883470, 127965560, 175813552, 219766940, 252731981, 255931120, 439533880, 505463962, 879067760, 1010927924, 1263659905, 2021855848, 2527319810, 4043711696, 5054639620, 10109279240, 20218558480]

約数ペア:

[(1, 20218558480), (2, 10109279240), (4, 5054639620), (5, 4043711696), (8, 2527319810), (10, 2021855848), (16, 1263659905), (20, 1010927924), (23, 879067760), (40, 505463962), (46, 439533880), (79, 255931120), (80, 252731981), (92, 219766940), (115, 175813552), (158, 127965560), (184, 109883470), (230, 87906776), (316, 63982780), (367, 55091440), (368, 54941735), (379, 53347120), (395, 51186224), (460, 43953388), (632, 31991390), (734, 27545720), (758, 26673560), (790, 25593112), (920, 21976694), (1264, 15995695), (1468, 13772860), (1516, 13336780), (1580, 12796556), (1817, 11127440), (1835, 11018288), (1840, 10988347), (1895, 10669424), (2936, 6886430), (3032, 6668390), (3160, 6398278), (3634, 5563720), (3670, 5509144), (3790, 5334712), (5872, 3443215), (6064, 3334195), (6320, 3199139), (7268, 2781860), (7340, 2754572), (7580, 2667356), (8441, 2395280), (8717, 2319440), (9085, 2225488), (14536, 1390930), (14680, 1377286), (15160, 1333678), (16882, 1197640), (17434, 1159720), (18170, 1112744), (28993, 697360), (29072, 695465), (29360, 688643), (29941, 675280), (30320, 666839), (33764, 598820), (34868, 579860), (36340, 556372), (42205, 479056), (43585, 463888), (57986, 348680), (59882, 337640), (67528, 299410), (69736, 289930), (72680, 278186), (84410, 239528), (87170, 231944), (115972, 174340), (119764, 168820), (135056, 149705), (139093, 145360), (139472, 144965)]