64433980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3137}}^1$

素因数の和:3238

約数の個数: 48

約数和(自身を含む): 147611520

約数和(自身を除く): 83177540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 3137, 4108, 5135, 6274, 10270, 12548, 15685, 20540, 31370, 40781, 62740, 81562, 163124, 203905, 247823, 407810, 495646, 815620, 991292, 1239115, 2478230, 3221699, 4956460, 6443398, 12886796, 16108495, 32216990, 64433980]

約数ペア:

[(1, 64433980), (2, 32216990), (4, 16108495), (5, 12886796), (10, 6443398), (13, 4956460), (20, 3221699), (26, 2478230), (52, 1239115), (65, 991292), (79, 815620), (130, 495646), (158, 407810), (260, 247823), (316, 203905), (395, 163124), (790, 81562), (1027, 62740), (1580, 40781), (2054, 31370), (3137, 20540), (4108, 15685), (5135, 12548), (6274, 10270)]