161061880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{4391}}^1$

素因数の和:4540

約数の個数: 64

約数和(自身を含む): 417415680

約数和(自身を除く): 256353800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 524, 655, 917, 1048, 1310, 1834, 2620, 3668, 4391, 4585, 5240, 7336, 8782, 9170, 17564, 18340, 21955, 30737, 35128, 36680, 43910, 61474, 87820, 122948, 153685, 175640, 245896, 307370, 575221, 614740, 1150442, 1229480, 2300884, 2876105, 4026547, 4601768, 5752210, 8053094, 11504420, 16106188, 20132735, 23008840, 32212376, 40265470, 80530940, 161061880]

約数ペア:

[(1, 161061880), (2, 80530940), (4, 40265470), (5, 32212376), (7, 23008840), (8, 20132735), (10, 16106188), (14, 11504420), (20, 8053094), (28, 5752210), (35, 4601768), (40, 4026547), (56, 2876105), (70, 2300884), (131, 1229480), (140, 1150442), (262, 614740), (280, 575221), (524, 307370), (655, 245896), (917, 175640), (1048, 153685), (1310, 122948), (1834, 87820), (2620, 61474), (3668, 43910), (4391, 36680), (4585, 35128), (5240, 30737), (7336, 21955), (8782, 18340), (9170, 17564)]