70781960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{29009}}^1$

素因数の和:29081

約数の個数: 32

約数和(自身を含む): 161875800

約数和(自身を除く): 91093840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 29009, 58018, 116036, 145045, 232072, 290090, 580180, 1160360, 1769549, 3539098, 7078196, 8847745, 14156392, 17695490, 35390980, 70781960]

約数ペア:

[(1, 70781960), (2, 35390980), (4, 17695490), (5, 14156392), (8, 8847745), (10, 7078196), (20, 3539098), (40, 1769549), (61, 1160360), (122, 580180), (244, 290090), (305, 232072), (488, 145045), (610, 116036), (1220, 58018), (2440, 29009)]