2121640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:130

約数の個数: 64

約数和(自身を含む): 5184000

約数和(自身を除く): 3062360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 59, 62, 116, 118, 124, 145, 155, 232, 236, 248, 290, 295, 310, 472, 580, 590, 620, 899, 1160, 1180, 1240, 1711, 1798, 1829, 2360, 3422, 3596, 3658, 4495, 6844, 7192, 7316, 8555, 8990, 9145, 13688, 14632, 17110, 17980, 18290, 34220, 35960, 36580, 53041, 68440, 73160, 106082, 212164, 265205, 424328, 530410, 1060820, 2121640]

約数ペア:

[(1, 2121640), (2, 1060820), (4, 530410), (5, 424328), (8, 265205), (10, 212164), (20, 106082), (29, 73160), (31, 68440), (40, 53041), (58, 36580), (59, 35960), (62, 34220), (116, 18290), (118, 17980), (124, 17110), (145, 14632), (155, 13688), (232, 9145), (236, 8990), (248, 8555), (290, 7316), (295, 7192), (310, 6844), (472, 4495), (580, 3658), (590, 3596), (620, 3422), (899, 2360), (1160, 1829), (1180, 1798), (1240, 1711)]