4991740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 11487168

約数和(自身を除く): 6495428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 263, 292, 365, 526, 730, 949, 1052, 1315, 1460, 1898, 2630, 3419, 3796, 4745, 5260, 6838, 9490, 13676, 17095, 18980, 19199, 34190, 38398, 68380, 76796, 95995, 191990, 249587, 383980, 499174, 998348, 1247935, 2495870, 4991740]

約数ペア:

[(1, 4991740), (2, 2495870), (4, 1247935), (5, 998348), (10, 499174), (13, 383980), (20, 249587), (26, 191990), (52, 95995), (65, 76796), (73, 68380), (130, 38398), (146, 34190), (260, 19199), (263, 18980), (292, 17095), (365, 13676), (526, 9490), (730, 6838), (949, 5260), (1052, 4745), (1315, 3796), (1460, 3419), (1898, 2630)]