77449880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1217}}^1$

素因数の和:1308

約数の個数: 64

約数和(自身を含む): 183284640

約数和(自身を除く): 105834760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 43, 74, 86, 148, 172, 185, 215, 296, 344, 370, 430, 740, 860, 1217, 1480, 1591, 1720, 2434, 3182, 4868, 6085, 6364, 7955, 9736, 12170, 12728, 15910, 24340, 31820, 45029, 48680, 52331, 63640, 90058, 104662, 180116, 209324, 225145, 261655, 360232, 418648, 450290, 523310, 900580, 1046620, 1801160, 1936247, 2093240, 3872494, 7744988, 9681235, 15489976, 19362470, 38724940, 77449880]

約数ペア:

[(1, 77449880), (2, 38724940), (4, 19362470), (5, 15489976), (8, 9681235), (10, 7744988), (20, 3872494), (37, 2093240), (40, 1936247), (43, 1801160), (74, 1046620), (86, 900580), (148, 523310), (172, 450290), (185, 418648), (215, 360232), (296, 261655), (344, 225145), (370, 209324), (430, 180116), (740, 104662), (860, 90058), (1217, 63640), (1480, 52331), (1591, 48680), (1720, 45029), (2434, 31820), (3182, 24340), (4868, 15910), (6085, 12728), (6364, 12170), (7955, 9736)]