13681220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1237}}^1$

素因数の和:1332

約数の個数: 48

約数和(自身を含む): 33277440

約数和(自身を除く): 19596220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1237, 1580, 2212, 2474, 2765, 4948, 5530, 6185, 8659, 11060, 12370, 17318, 24740, 34636, 43295, 86590, 97723, 173180, 195446, 390892, 488615, 684061, 977230, 1368122, 1954460, 2736244, 3420305, 6840610, 13681220]

約数ペア:

[(1, 13681220), (2, 6840610), (4, 3420305), (5, 2736244), (7, 1954460), (10, 1368122), (14, 977230), (20, 684061), (28, 488615), (35, 390892), (70, 195446), (79, 173180), (140, 97723), (158, 86590), (316, 43295), (395, 34636), (553, 24740), (790, 17318), (1106, 12370), (1237, 11060), (1580, 8659), (2212, 6185), (2474, 5530), (2765, 4948)]