1285202320

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{32719}}^1$

素因数の和:33223

約数の個数: 40

約数和(自身を含む): 2994272640

約数和(自身を除く): 1709070320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2455, 3928, 4910, 7856, 9820, 19640, 32719, 39280, 65438, 130876, 163595, 261752, 327190, 523504, 654380, 1308760, 2617520, 16065029, 32130058, 64260116, 80325145, 128520232, 160650290, 257040464, 321300580, 642601160, 1285202320]

約数ペア:

[(1, 1285202320), (2, 642601160), (4, 321300580), (5, 257040464), (8, 160650290), (10, 128520232), (16, 80325145), (20, 64260116), (40, 32130058), (80, 16065029), (491, 2617520), (982, 1308760), (1964, 654380), (2455, 523504), (3928, 327190), (4910, 261752), (7856, 163595), (9820, 130876), (19640, 65438), (32719, 39280)]