1564840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:130

約数の個数: 64

約数和(自身を含む): 3888000

約数和(自身を除く): 2323160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 71, 76, 95, 116, 142, 145, 152, 190, 232, 284, 290, 355, 380, 551, 568, 580, 710, 760, 1102, 1160, 1349, 1420, 2059, 2204, 2698, 2755, 2840, 4118, 4408, 5396, 5510, 6745, 8236, 10295, 10792, 11020, 13490, 16472, 20590, 22040, 26980, 39121, 41180, 53960, 78242, 82360, 156484, 195605, 312968, 391210, 782420, 1564840]

約数ペア:

[(1, 1564840), (2, 782420), (4, 391210), (5, 312968), (8, 195605), (10, 156484), (19, 82360), (20, 78242), (29, 53960), (38, 41180), (40, 39121), (58, 26980), (71, 22040), (76, 20590), (95, 16472), (116, 13490), (142, 11020), (145, 10792), (152, 10295), (190, 8236), (232, 6745), (284, 5510), (290, 5396), (355, 4408), (380, 4118), (551, 2840), (568, 2755), (580, 2698), (710, 2204), (760, 2059), (1102, 1420), (1160, 1349)]