289010720

素因数分解:

$2^5\times 5^1\times {\mathrm{277}}^1\times {\mathrm{6521}}^1$

素因数の和:6813

約数の個数: 48

約数和(自身を含む): 685357848

約数和(自身を除く): 396347128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 277, 554, 1108, 1385, 2216, 2770, 4432, 5540, 6521, 8864, 11080, 13042, 22160, 26084, 32605, 44320, 52168, 65210, 104336, 130420, 208672, 260840, 521680, 1043360, 1806317, 3612634, 7225268, 9031585, 14450536, 18063170, 28901072, 36126340, 57802144, 72252680, 144505360, 289010720]

約数ペア:

[(1, 289010720), (2, 144505360), (4, 72252680), (5, 57802144), (8, 36126340), (10, 28901072), (16, 18063170), (20, 14450536), (32, 9031585), (40, 7225268), (80, 3612634), (160, 1806317), (277, 1043360), (554, 521680), (1108, 260840), (1385, 208672), (2216, 130420), (2770, 104336), (4432, 65210), (5540, 52168), (6521, 44320), (8864, 32605), (11080, 26084), (13042, 22160)]