28161420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3529}}^1$

素因数の和:3567

約数の個数: 96

約数和(自身を含む): 94886400

約数和(自身を除く): 66724980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3529, 3990, 7058, 7980, 10587, 14116, 17645, 21174, 24703, 35290, 42348, 49406, 52935, 67051, 70580, 74109, 98812, 105870, 123515, 134102, 148218, 201153, 211740, 247030, 268204, 296436, 335255, 370545, 402306, 469357, 494060, 670510, 741090, 804612, 938714, 1005765, 1341020, 1408071, 1482180, 1877428, 2011530, 2346785, 2816142, 4023060, 4693570, 5632284, 7040355, 9387140, 14080710, 28161420]

約数ペア:

[(1, 28161420), (2, 14080710), (3, 9387140), (4, 7040355), (5, 5632284), (6, 4693570), (7, 4023060), (10, 2816142), (12, 2346785), (14, 2011530), (15, 1877428), (19, 1482180), (20, 1408071), (21, 1341020), (28, 1005765), (30, 938714), (35, 804612), (38, 741090), (42, 670510), (57, 494060), (60, 469357), (70, 402306), (76, 370545), (84, 335255), (95, 296436), (105, 268204), (114, 247030), (133, 211740), (140, 201153), (190, 148218), (210, 134102), (228, 123515), (266, 105870), (285, 98812), (380, 74109), (399, 70580), (420, 67051), (532, 52935), (570, 49406), (665, 42348), (798, 35290), (1140, 24703), (1330, 21174), (1596, 17645), (1995, 14116), (2660, 10587), (3529, 7980), (3990, 7058)]