21081402040

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{347}}^1\times {\mathrm{13441}}^1$

素因数の和:13912

約数の個数: 64

約数和(自身を含む): 47994392160

約数和(自身を除く): 26912990120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 347, 452, 565, 694, 904, 1130, 1388, 1735, 2260, 2776, 3470, 4520, 6940, 13441, 13880, 26882, 39211, 53764, 67205, 78422, 107528, 134410, 156844, 196055, 268820, 313688, 392110, 537640, 784220, 1518833, 1568440, 3037666, 4664027, 6075332, 7594165, 9328054, 12150664, 15188330, 18656108, 23320135, 30376660, 37312216, 46640270, 60753320, 93280540, 186561080, 527035051, 1054070102, 2108140204, 2635175255, 4216280408, 5270350510, 10540701020, 21081402040]

約数ペア:

[(1, 21081402040), (2, 10540701020), (4, 5270350510), (5, 4216280408), (8, 2635175255), (10, 2108140204), (20, 1054070102), (40, 527035051), (113, 186561080), (226, 93280540), (347, 60753320), (452, 46640270), (565, 37312216), (694, 30376660), (904, 23320135), (1130, 18656108), (1388, 15188330), (1735, 12150664), (2260, 9328054), (2776, 7594165), (3470, 6075332), (4520, 4664027), (6940, 3037666), (13441, 1568440), (13880, 1518833), (26882, 784220), (39211, 537640), (53764, 392110), (67205, 313688), (78422, 268820), (107528, 196055), (134410, 156844)]