212061520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{607}}^1$

素因数の和:1028

約数の個数: 80

約数和(自身を含む): 540108288

約数和(自身を除く): 328046768

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 397, 440, 607, 794, 880, 1214, 1588, 1985, 2428, 3035, 3176, 3970, 4367, 4856, 6070, 6352, 6677, 7940, 8734, 9712, 12140, 13354, 15880, 17468, 21835, 24280, 26708, 31760, 33385, 34936, 43670, 48560, 53416, 66770, 69872, 87340, 106832, 133540, 174680, 240979, 267080, 349360, 481958, 534160, 963916, 1204895, 1927832, 2409790, 2650769, 3855664, 4819580, 5301538, 9639160, 10603076, 13253845, 19278320, 21206152, 26507690, 42412304, 53015380, 106030760, 212061520]

約数ペア:

[(1, 212061520), (2, 106030760), (4, 53015380), (5, 42412304), (8, 26507690), (10, 21206152), (11, 19278320), (16, 13253845), (20, 10603076), (22, 9639160), (40, 5301538), (44, 4819580), (55, 3855664), (80, 2650769), (88, 2409790), (110, 1927832), (176, 1204895), (220, 963916), (397, 534160), (440, 481958), (607, 349360), (794, 267080), (880, 240979), (1214, 174680), (1588, 133540), (1985, 106832), (2428, 87340), (3035, 69872), (3176, 66770), (3970, 53416), (4367, 48560), (4856, 43670), (6070, 34936), (6352, 33385), (6677, 31760), (7940, 26708), (8734, 24280), (9712, 21835), (12140, 17468), (13354, 15880)]