20165286880

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{479}}^1$

素因数の和:777

約数の個数: 192

約数和(自身を含む): 50774169600

約数和(自身を除く): 30608882720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 43, 58, 80, 86, 116, 145, 160, 172, 211, 215, 232, 290, 344, 422, 430, 464, 479, 580, 688, 844, 860, 928, 958, 1055, 1160, 1247, 1376, 1688, 1720, 1916, 2110, 2320, 2395, 2494, 3376, 3440, 3832, 4220, 4640, 4790, 4988, 6119, 6235, 6752, 6880, 7664, 8440, 9073, 9580, 9976, 12238, 12470, 13891, 15328, 16880, 18146, 19160, 19952, 20597, 24476, 24940, 27782, 30595, 33760, 36292, 38320, 39904, 41194, 45365, 48952, 49880, 55564, 61190, 69455, 72584, 76640, 82388, 90730, 97904, 99760, 101069, 102985, 111128, 122380, 138910, 145168, 164776, 181460, 195808, 199520, 202138, 205970, 222256, 244760, 263117, 277820, 290336, 329552, 362920, 404276, 411940, 444512, 489520, 505345, 526234, 555640, 597313, 659104, 725840, 808552, 823880, 979040, 1010690, 1052468, 1111280, 1194626, 1315585, 1451680, 1617104, 1647760, 2021380, 2104936, 2222560, 2389252, 2631170, 2931001, 2986565, 3234208, 3295520, 4042760, 4209872, 4345967, 4778504, 5262340, 5862002, 5973130, 8085520, 8419744, 8691934, 9557008, 10524680, 11724004, 11946260, 14655005, 16171040, 17383868, 19114016, 21049360, 21729835, 23448008, 23892520, 29310010, 34767736, 42098720, 43459670, 46896016, 47785040, 58620020, 69535472, 86919340, 93792032, 95570080, 117240040, 126033043, 139070944, 173838680, 234480080, 252066086, 347677360, 468960160, 504132172, 630165215, 695354720, 1008264344, 1260330430, 2016528688, 2520660860, 4033057376, 5041321720, 10082643440, 20165286880]

約数ペア:

[(1, 20165286880), (2, 10082643440), (4, 5041321720), (5, 4033057376), (8, 2520660860), (10, 2016528688), (16, 1260330430), (20, 1008264344), (29, 695354720), (32, 630165215), (40, 504132172), (43, 468960160), (58, 347677360), (80, 252066086), (86, 234480080), (116, 173838680), (145, 139070944), (160, 126033043), (172, 117240040), (211, 95570080), (215, 93792032), (232, 86919340), (290, 69535472), (344, 58620020), (422, 47785040), (430, 46896016), (464, 43459670), (479, 42098720), (580, 34767736), (688, 29310010), (844, 23892520), (860, 23448008), (928, 21729835), (958, 21049360), (1055, 19114016), (1160, 17383868), (1247, 16171040), (1376, 14655005), (1688, 11946260), (1720, 11724004), (1916, 10524680), (2110, 9557008), (2320, 8691934), (2395, 8419744), (2494, 8085520), (3376, 5973130), (3440, 5862002), (3832, 5262340), (4220, 4778504), (4640, 4345967), (4790, 4209872), (4988, 4042760), (6119, 3295520), (6235, 3234208), (6752, 2986565), (6880, 2931001), (7664, 2631170), (8440, 2389252), (9073, 2222560), (9580, 2104936), (9976, 2021380), (12238, 1647760), (12470, 1617104), (13891, 1451680), (15328, 1315585), (16880, 1194626), (18146, 1111280), (19160, 1052468), (19952, 1010690), (20597, 979040), (24476, 823880), (24940, 808552), (27782, 725840), (30595, 659104), (33760, 597313), (36292, 555640), (38320, 526234), (39904, 505345), (41194, 489520), (45365, 444512), (48952, 411940), (49880, 404276), (55564, 362920), (61190, 329552), (69455, 290336), (72584, 277820), (76640, 263117), (82388, 244760), (90730, 222256), (97904, 205970), (99760, 202138), (101069, 199520), (102985, 195808), (111128, 181460), (122380, 164776), (138910, 145168)]