13880620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 31667328

約数和(自身を除く): 17786708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 271, 394, 542, 788, 985, 1084, 1355, 1970, 2561, 2710, 3523, 3940, 5122, 5420, 7046, 10244, 12805, 14092, 17615, 25610, 35230, 51220, 53387, 70460, 106774, 213548, 266935, 533870, 694031, 1067740, 1388062, 2776124, 3470155, 6940310, 13880620]

約数ペア:

[(1, 13880620), (2, 6940310), (4, 3470155), (5, 2776124), (10, 1388062), (13, 1067740), (20, 694031), (26, 533870), (52, 266935), (65, 213548), (130, 106774), (197, 70460), (260, 53387), (271, 51220), (394, 35230), (542, 25610), (788, 17615), (985, 14092), (1084, 12805), (1355, 10244), (1970, 7046), (2561, 5420), (2710, 5122), (3523, 3940)]