402006020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{5879}}^1$

素因数の和:6164

約数の個数: 48

約数和(自身を含む): 912764160

約数和(自身を除く): 510758140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 263, 526, 1052, 1315, 2630, 3419, 5260, 5879, 6838, 11758, 13676, 17095, 23516, 29395, 34190, 58790, 68380, 76427, 117580, 152854, 305708, 382135, 764270, 1528540, 1546177, 3092354, 6184708, 7730885, 15461770, 20100301, 30923540, 40200602, 80401204, 100501505, 201003010, 402006020]

約数ペア:

[(1, 402006020), (2, 201003010), (4, 100501505), (5, 80401204), (10, 40200602), (13, 30923540), (20, 20100301), (26, 15461770), (52, 7730885), (65, 6184708), (130, 3092354), (260, 1546177), (263, 1528540), (526, 764270), (1052, 382135), (1315, 305708), (2630, 152854), (3419, 117580), (5260, 76427), (5879, 68380), (6838, 58790), (11758, 34190), (13676, 29395), (17095, 23516)]