51556140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6661}}^1$

素因数の和:6719

約数の個数: 72

約数和(自身を含む): 160047888

約数和(自身を除く): 108491748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 6661, 7740, 13322, 19983, 26644, 33305, 39966, 59949, 66610, 79932, 99915, 119898, 133220, 199830, 239796, 286423, 299745, 399660, 572846, 599490, 859269, 1145692, 1198980, 1432115, 1718538, 2577807, 2864230, 3437076, 4296345, 5155614, 5728460, 8592690, 10311228, 12889035, 17185380, 25778070, 51556140]

約数ペア:

[(1, 51556140), (2, 25778070), (3, 17185380), (4, 12889035), (5, 10311228), (6, 8592690), (9, 5728460), (10, 5155614), (12, 4296345), (15, 3437076), (18, 2864230), (20, 2577807), (30, 1718538), (36, 1432115), (43, 1198980), (45, 1145692), (60, 859269), (86, 599490), (90, 572846), (129, 399660), (172, 299745), (180, 286423), (215, 239796), (258, 199830), (387, 133220), (430, 119898), (516, 99915), (645, 79932), (774, 66610), (860, 59949), (1290, 39966), (1548, 33305), (1935, 26644), (2580, 19983), (3870, 13322), (6661, 7740)]