64989980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{17377}}^1$

素因数の和:17414

約数の個数: 48

約数和(自身を含む): 157653216

約数和(自身を除く): 92663236

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 17377, 34754, 69508, 86885, 173770, 191147, 295409, 347540, 382294, 590818, 764588, 955735, 1181636, 1477045, 1911470, 2954090, 3249499, 3822940, 5908180, 6498998, 12997996, 16247495, 32494990, 64989980]

約数ペア:

[(1, 64989980), (2, 32494990), (4, 16247495), (5, 12997996), (10, 6498998), (11, 5908180), (17, 3822940), (20, 3249499), (22, 2954090), (34, 1911470), (44, 1477045), (55, 1181636), (68, 955735), (85, 764588), (110, 590818), (170, 382294), (187, 347540), (220, 295409), (340, 191147), (374, 173770), (748, 86885), (935, 69508), (1870, 34754), (3740, 17377)]