8481880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 21422880

約数和(自身を除く): 12941000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 521, 740, 814, 1042, 1480, 1628, 2035, 2084, 2605, 3256, 4070, 4168, 5210, 5731, 8140, 10420, 11462, 16280, 19277, 20840, 22924, 28655, 38554, 45848, 57310, 77108, 96385, 114620, 154216, 192770, 212047, 229240, 385540, 424094, 771080, 848188, 1060235, 1696376, 2120470, 4240940, 8481880]

約数ペア:

[(1, 8481880), (2, 4240940), (4, 2120470), (5, 1696376), (8, 1060235), (10, 848188), (11, 771080), (20, 424094), (22, 385540), (37, 229240), (40, 212047), (44, 192770), (55, 154216), (74, 114620), (88, 96385), (110, 77108), (148, 57310), (185, 45848), (220, 38554), (296, 28655), (370, 22924), (407, 20840), (440, 19277), (521, 16280), (740, 11462), (814, 10420), (1042, 8140), (1480, 5731), (1628, 5210), (2035, 4168), (2084, 4070), (2605, 3256)]