217525360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{209159}}^1$

素因数の和:209185

約数の個数: 40

約数和(自身を含む): 544652640

約数和(自身を除く): 327127280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 209159, 418318, 836636, 1045795, 1673272, 2091590, 2719067, 3346544, 4183180, 5438134, 8366360, 10876268, 13595335, 16732720, 21752536, 27190670, 43505072, 54381340, 108762680, 217525360]

約数ペア:

[(1, 217525360), (2, 108762680), (4, 54381340), (5, 43505072), (8, 27190670), (10, 21752536), (13, 16732720), (16, 13595335), (20, 10876268), (26, 8366360), (40, 5438134), (52, 4183180), (65, 3346544), (80, 2719067), (104, 2091590), (130, 1673272), (208, 1045795), (260, 836636), (520, 418318), (1040, 209159)]