20787543608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{4933}}^1\times {\mathrm{40519}}^1$

素因数の和:45471

約数の個数: 32

約数和(自身を含む): 41984392800

約数和(自身を除く): 21196849192

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 4933, 9866, 19732, 39464, 40519, 64129, 81038, 128258, 162076, 256516, 324152, 513032, 526747, 1053494, 2106988, 4213976, 199880227, 399760454, 799520908, 1599041816, 2598442951, 5196885902, 10393771804, 20787543608]

約数ペア:

[(1, 20787543608), (2, 10393771804), (4, 5196885902), (8, 2598442951), (13, 1599041816), (26, 799520908), (52, 399760454), (104, 199880227), (4933, 4213976), (9866, 2106988), (19732, 1053494), (39464, 526747), (40519, 513032), (64129, 324152), (81038, 256516), (128258, 162076)]