27983020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{487}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 67513824

約数和(自身を除く): 39530804

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 260, 338, 340, 442, 487, 676, 845, 884, 974, 1105, 1690, 1948, 2210, 2435, 2873, 3380, 4420, 4870, 5746, 6331, 8279, 9740, 11492, 12662, 14365, 16558, 25324, 28730, 31655, 33116, 41395, 57460, 63310, 82303, 82790, 107627, 126620, 164606, 165580, 215254, 329212, 411515, 430508, 538135, 823030, 1076270, 1399151, 1646060, 2152540, 2798302, 5596604, 6995755, 13991510, 27983020]

約数ペア:

[(1, 27983020), (2, 13991510), (4, 6995755), (5, 5596604), (10, 2798302), (13, 2152540), (17, 1646060), (20, 1399151), (26, 1076270), (34, 823030), (52, 538135), (65, 430508), (68, 411515), (85, 329212), (130, 215254), (169, 165580), (170, 164606), (221, 126620), (260, 107627), (338, 82790), (340, 82303), (442, 63310), (487, 57460), (676, 41395), (845, 33116), (884, 31655), (974, 28730), (1105, 25324), (1690, 16558), (1948, 14365), (2210, 12662), (2435, 11492), (2873, 9740), (3380, 8279), (4420, 6331), (4870, 5746)]