19677680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{379}}^1$

素因数の和:462

約数の個数: 80

約数和(自身を含む): 50889600

約数和(自身を除く): 31211920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 176, 220, 236, 295, 379, 440, 472, 590, 649, 758, 880, 944, 1180, 1298, 1516, 1895, 2360, 2596, 3032, 3245, 3790, 4169, 4720, 5192, 6064, 6490, 7580, 8338, 10384, 12980, 15160, 16676, 20845, 22361, 25960, 30320, 33352, 41690, 44722, 51920, 66704, 83380, 89444, 111805, 166760, 178888, 223610, 245971, 333520, 357776, 447220, 491942, 894440, 983884, 1229855, 1788880, 1967768, 2459710, 3935536, 4919420, 9838840, 19677680]

約数ペア:

[(1, 19677680), (2, 9838840), (4, 4919420), (5, 3935536), (8, 2459710), (10, 1967768), (11, 1788880), (16, 1229855), (20, 983884), (22, 894440), (40, 491942), (44, 447220), (55, 357776), (59, 333520), (80, 245971), (88, 223610), (110, 178888), (118, 166760), (176, 111805), (220, 89444), (236, 83380), (295, 66704), (379, 51920), (440, 44722), (472, 41690), (590, 33352), (649, 30320), (758, 25960), (880, 22361), (944, 20845), (1180, 16676), (1298, 15160), (1516, 12980), (1895, 10384), (2360, 8338), (2596, 7580), (3032, 6490), (3245, 6064), (3790, 5192), (4169, 4720)]