20050722

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:419

約数の個数: 48

約数和(自身を含む): 45110520

約数和(自身を除く): 25059798

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 101, 123, 202, 246, 269, 303, 369, 538, 606, 738, 807, 909, 1614, 1818, 2421, 4141, 4842, 8282, 11029, 12423, 22058, 24846, 27169, 33087, 37269, 54338, 66174, 74538, 81507, 99261, 163014, 198522, 244521, 489042, 1113929, 2227858, 3341787, 6683574, 10025361, 20050722]

約数ペア:

[(1, 20050722), (2, 10025361), (3, 6683574), (6, 3341787), (9, 2227858), (18, 1113929), (41, 489042), (82, 244521), (101, 198522), (123, 163014), (202, 99261), (246, 81507), (269, 74538), (303, 66174), (369, 54338), (538, 37269), (606, 33087), (738, 27169), (807, 24846), (909, 22058), (1614, 12423), (1818, 11029), (2421, 8282), (4141, 4842)]