25495640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 61344000

約数和(自身を除く): 35848360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 709, 899, 1160, 1240, 1418, 1798, 2836, 3545, 3596, 4495, 5672, 7090, 7192, 8990, 14180, 17980, 20561, 21979, 28360, 35960, 41122, 43958, 82244, 87916, 102805, 109895, 164488, 175832, 205610, 219790, 411220, 439580, 637391, 822440, 879160, 1274782, 2549564, 3186955, 5099128, 6373910, 12747820, 25495640]

約数ペア:

[(1, 25495640), (2, 12747820), (4, 6373910), (5, 5099128), (8, 3186955), (10, 2549564), (20, 1274782), (29, 879160), (31, 822440), (40, 637391), (58, 439580), (62, 411220), (116, 219790), (124, 205610), (145, 175832), (155, 164488), (232, 109895), (248, 102805), (290, 87916), (310, 82244), (580, 43958), (620, 41122), (709, 35960), (899, 28360), (1160, 21979), (1240, 20561), (1418, 17980), (1798, 14180), (2836, 8990), (3545, 7192), (3596, 7090), (4495, 5672)]