131413960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{809}}^1$

素因数の和:982

約数の個数: 64

約数和(自身を含む): 307929600

約数和(自身を除く): 176515640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 524, 620, 655, 809, 1048, 1240, 1310, 1618, 2620, 3236, 4045, 4061, 5240, 6472, 8090, 8122, 16180, 16244, 20305, 25079, 32360, 32488, 40610, 50158, 81220, 100316, 105979, 125395, 162440, 200632, 211958, 250790, 423916, 501580, 529895, 847832, 1003160, 1059790, 2119580, 3285349, 4239160, 6570698, 13141396, 16426745, 26282792, 32853490, 65706980, 131413960]

約数ペア:

[(1, 131413960), (2, 65706980), (4, 32853490), (5, 26282792), (8, 16426745), (10, 13141396), (20, 6570698), (31, 4239160), (40, 3285349), (62, 2119580), (124, 1059790), (131, 1003160), (155, 847832), (248, 529895), (262, 501580), (310, 423916), (524, 250790), (620, 211958), (655, 200632), (809, 162440), (1048, 125395), (1240, 105979), (1310, 100316), (1618, 81220), (2620, 50158), (3236, 40610), (4045, 32488), (4061, 32360), (5240, 25079), (6472, 20305), (8090, 16244), (8122, 16180)]