27740580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^2$

素因数の和:533

約数の個数: 72

約数和(自身を含む): 89116608

約数和(自身を除く): 61376028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 257, 420, 514, 771, 1028, 1285, 1542, 1799, 2570, 3084, 3598, 3855, 5140, 5397, 7196, 7710, 8995, 10794, 15420, 17990, 21588, 26985, 35980, 53970, 66049, 107940, 132098, 198147, 264196, 330245, 396294, 462343, 660490, 792588, 924686, 990735, 1320980, 1387029, 1849372, 1981470, 2311715, 2774058, 3962940, 4623430, 5548116, 6935145, 9246860, 13870290, 27740580]

約数ペア:

[(1, 27740580), (2, 13870290), (3, 9246860), (4, 6935145), (5, 5548116), (6, 4623430), (7, 3962940), (10, 2774058), (12, 2311715), (14, 1981470), (15, 1849372), (20, 1387029), (21, 1320980), (28, 990735), (30, 924686), (35, 792588), (42, 660490), (60, 462343), (70, 396294), (84, 330245), (105, 264196), (140, 198147), (210, 132098), (257, 107940), (420, 66049), (514, 53970), (771, 35980), (1028, 26985), (1285, 21588), (1542, 17990), (1799, 15420), (2570, 10794), (3084, 8995), (3598, 7710), (3855, 7196), (5140, 5397)]