64847620

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{467}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 140107968

約数和(自身を除く): 75260348

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 131, 212, 262, 265, 467, 524, 530, 655, 934, 1060, 1310, 1868, 2335, 2620, 4670, 6943, 9340, 13886, 24751, 27772, 34715, 49502, 61177, 69430, 99004, 122354, 123755, 138860, 244708, 247510, 305885, 495020, 611770, 1223540, 3242381, 6484762, 12969524, 16211905, 32423810, 64847620]

約数ペア:

[(1, 64847620), (2, 32423810), (4, 16211905), (5, 12969524), (10, 6484762), (20, 3242381), (53, 1223540), (106, 611770), (131, 495020), (212, 305885), (262, 247510), (265, 244708), (467, 138860), (524, 123755), (530, 122354), (655, 99004), (934, 69430), (1060, 61177), (1310, 49502), (1868, 34715), (2335, 27772), (2620, 24751), (4670, 13886), (6943, 9340)]