255988740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{87071}}^1$

素因数の和:87097

約数の個数: 72

約数和(自身を含む): 833801472

約数和(自身を除く): 577812732

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 87071, 174142, 261213, 348284, 435355, 522426, 609497, 870710, 1044852, 1218994, 1306065, 1741420, 1828491, 2437988, 2612130, 3047485, 3656982, 4266479, 5224260, 6094970, 7313964, 8532958, 9142455, 12189940, 12799437, 17065916, 18284910, 21332395, 25598874, 36569820, 42664790, 51197748, 63997185, 85329580, 127994370, 255988740]

約数ペア:

[(1, 255988740), (2, 127994370), (3, 85329580), (4, 63997185), (5, 51197748), (6, 42664790), (7, 36569820), (10, 25598874), (12, 21332395), (14, 18284910), (15, 17065916), (20, 12799437), (21, 12189940), (28, 9142455), (30, 8532958), (35, 7313964), (42, 6094970), (49, 5224260), (60, 4266479), (70, 3656982), (84, 3047485), (98, 2612130), (105, 2437988), (140, 1828491), (147, 1741420), (196, 1306065), (210, 1218994), (245, 1044852), (294, 870710), (420, 609497), (490, 522426), (588, 435355), (735, 348284), (980, 261213), (1470, 174142), (2940, 87071)]