2561170090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{661}}^1$

素因数の和:1159

約数の個数: 64

約数和(自身を含む): 4941803520

約数和(自身を除く): 2380633430

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 431, 661, 862, 899, 1322, 1798, 2155, 3305, 4310, 4495, 6610, 8990, 12499, 13361, 19169, 20491, 24998, 26722, 38338, 40982, 62495, 66805, 95845, 102455, 124990, 133610, 191690, 204910, 284891, 387469, 569782, 594239, 774938, 1188478, 1424455, 1937345, 2848910, 2971195, 3874690, 5942390, 8261839, 8831621, 16523678, 17663242, 41309195, 44158105, 82618390, 88316210, 256117009, 512234018, 1280585045, 2561170090]

約数ペア:

[(1, 2561170090), (2, 1280585045), (5, 512234018), (10, 256117009), (29, 88316210), (31, 82618390), (58, 44158105), (62, 41309195), (145, 17663242), (155, 16523678), (290, 8831621), (310, 8261839), (431, 5942390), (661, 3874690), (862, 2971195), (899, 2848910), (1322, 1937345), (1798, 1424455), (2155, 1188478), (3305, 774938), (4310, 594239), (4495, 569782), (6610, 387469), (8990, 284891), (12499, 204910), (13361, 191690), (19169, 133610), (20491, 124990), (24998, 102455), (26722, 95845), (38338, 66805), (40982, 62495)]