212143540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{6983}}^1$

素因数の和:7037

約数の個数: 72

約数和(自身を含む): 535030272

約数和(自身を除く): 322886732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 620, 868, 980, 1085, 1519, 2170, 3038, 4340, 6076, 6983, 7595, 13966, 15190, 27932, 30380, 34915, 48881, 69830, 97762, 139660, 195524, 216473, 244405, 342167, 432946, 488810, 684334, 865892, 977620, 1082365, 1368668, 1515311, 1710835, 2164730, 3030622, 3421670, 4329460, 6061244, 6843340, 7576555, 10607177, 15153110, 21214354, 30306220, 42428708, 53035885, 106071770, 212143540]

約数ペア:

[(1, 212143540), (2, 106071770), (4, 53035885), (5, 42428708), (7, 30306220), (10, 21214354), (14, 15153110), (20, 10607177), (28, 7576555), (31, 6843340), (35, 6061244), (49, 4329460), (62, 3421670), (70, 3030622), (98, 2164730), (124, 1710835), (140, 1515311), (155, 1368668), (196, 1082365), (217, 977620), (245, 865892), (310, 684334), (434, 488810), (490, 432946), (620, 342167), (868, 244405), (980, 216473), (1085, 195524), (1519, 139660), (2170, 97762), (3038, 69830), (4340, 48881), (6076, 34915), (6983, 30380), (7595, 27932), (13966, 15190)]