7865240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 19008000

約数和(自身を除く): 11142760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 131, 152, 158, 190, 262, 316, 380, 395, 524, 632, 655, 760, 790, 1048, 1310, 1501, 1580, 2489, 2620, 3002, 3160, 4978, 5240, 6004, 7505, 9956, 10349, 12008, 12445, 15010, 19912, 20698, 24890, 30020, 41396, 49780, 51745, 60040, 82792, 99560, 103490, 196631, 206980, 393262, 413960, 786524, 983155, 1573048, 1966310, 3932620, 7865240]

約数ペア:

[(1, 7865240), (2, 3932620), (4, 1966310), (5, 1573048), (8, 983155), (10, 786524), (19, 413960), (20, 393262), (38, 206980), (40, 196631), (76, 103490), (79, 99560), (95, 82792), (131, 60040), (152, 51745), (158, 49780), (190, 41396), (262, 30020), (316, 24890), (380, 20698), (395, 19912), (524, 15010), (632, 12445), (655, 12008), (760, 10349), (790, 9956), (1048, 7505), (1310, 6004), (1501, 5240), (1580, 4978), (2489, 3160), (2620, 3002)]