13273580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 29245440

約数和(自身を除く): 15971860

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 271, 310, 316, 395, 542, 620, 790, 1084, 1355, 1580, 2449, 2710, 4898, 5420, 8401, 9796, 12245, 16802, 21409, 24490, 33604, 42005, 42818, 48980, 84010, 85636, 107045, 168020, 214090, 428180, 663679, 1327358, 2654716, 3318395, 6636790, 13273580]

約数ペア:

[(1, 13273580), (2, 6636790), (4, 3318395), (5, 2654716), (10, 1327358), (20, 663679), (31, 428180), (62, 214090), (79, 168020), (124, 107045), (155, 85636), (158, 84010), (271, 48980), (310, 42818), (316, 42005), (395, 33604), (542, 24490), (620, 21409), (790, 16802), (1084, 12245), (1355, 9796), (1580, 8401), (2449, 5420), (2710, 4898)]