90479180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4621}}^1$

素因数の和:4730

約数の個数: 48

約数和(自身を含む): 209653920

約数和(自身を除く): 119174740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4621, 4895, 9242, 9790, 18484, 19580, 23105, 46210, 50831, 92420, 101662, 203324, 254155, 411269, 508310, 822538, 1016620, 1645076, 2056345, 4112690, 4523959, 8225380, 9047918, 18095836, 22619795, 45239590, 90479180]

約数ペア:

[(1, 90479180), (2, 45239590), (4, 22619795), (5, 18095836), (10, 9047918), (11, 8225380), (20, 4523959), (22, 4112690), (44, 2056345), (55, 1645076), (89, 1016620), (110, 822538), (178, 508310), (220, 411269), (356, 254155), (445, 203324), (890, 101662), (979, 92420), (1780, 50831), (1958, 46210), (3916, 23105), (4621, 19580), (4895, 18484), (9242, 9790)]