1392820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 3443328

約数和(自身を除く): 2050508

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 487, 572, 715, 974, 1430, 1948, 2435, 2860, 4870, 5357, 6331, 9740, 10714, 12662, 21428, 25324, 26785, 31655, 53570, 63310, 69641, 107140, 126620, 139282, 278564, 348205, 696410, 1392820]

約数ペア:

[(1, 1392820), (2, 696410), (4, 348205), (5, 278564), (10, 139282), (11, 126620), (13, 107140), (20, 69641), (22, 63310), (26, 53570), (44, 31655), (52, 26785), (55, 25324), (65, 21428), (110, 12662), (130, 10714), (143, 9740), (220, 6331), (260, 5357), (286, 4870), (487, 2860), (572, 2435), (715, 1948), (974, 1430)]