40981720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1487}}^1$

素因数の和:1564

約数の個数: 64

約数和(自身を含む): 101243520

約数和(自身を除く): 60261800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 689, 1060, 1378, 1487, 2120, 2756, 2974, 3445, 5512, 5948, 6890, 7435, 11896, 13780, 14870, 19331, 27560, 29740, 38662, 59480, 77324, 78811, 96655, 154648, 157622, 193310, 315244, 386620, 394055, 630488, 773240, 788110, 1024543, 1576220, 2049086, 3152440, 4098172, 5122715, 8196344, 10245430, 20490860, 40981720]

約数ペア:

[(1, 40981720), (2, 20490860), (4, 10245430), (5, 8196344), (8, 5122715), (10, 4098172), (13, 3152440), (20, 2049086), (26, 1576220), (40, 1024543), (52, 788110), (53, 773240), (65, 630488), (104, 394055), (106, 386620), (130, 315244), (212, 193310), (260, 157622), (265, 154648), (424, 96655), (520, 78811), (530, 77324), (689, 59480), (1060, 38662), (1378, 29740), (1487, 27560), (2120, 19331), (2756, 14870), (2974, 13780), (3445, 11896), (5512, 7435), (5948, 6890)]