15906020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{467}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 36324288

約数和(自身を除く): 20418268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 467, 524, 655, 934, 1310, 1703, 1868, 2335, 2620, 3406, 4670, 6071, 6812, 8515, 9340, 12142, 17030, 24284, 30355, 34060, 60710, 61177, 121420, 122354, 244708, 305885, 611770, 795301, 1223540, 1590602, 3181204, 3976505, 7953010, 15906020]

約数ペア:

[(1, 15906020), (2, 7953010), (4, 3976505), (5, 3181204), (10, 1590602), (13, 1223540), (20, 795301), (26, 611770), (52, 305885), (65, 244708), (130, 122354), (131, 121420), (260, 61177), (262, 60710), (467, 34060), (524, 30355), (655, 24284), (934, 17030), (1310, 12142), (1703, 9340), (1868, 8515), (2335, 6812), (2620, 6071), (3406, 4670)]