19756040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1709}}^1$

素因数の和:1754

約数の個数: 48

約数和(自身を含む): 47247300

約数和(自身を除く): 27491260

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 1709, 2312, 2890, 3418, 5780, 6836, 8545, 11560, 13672, 17090, 29053, 34180, 58106, 68360, 116212, 145265, 232424, 290530, 493901, 581060, 987802, 1162120, 1975604, 2469505, 3951208, 4939010, 9878020, 19756040]

約数ペア:

[(1, 19756040), (2, 9878020), (4, 4939010), (5, 3951208), (8, 2469505), (10, 1975604), (17, 1162120), (20, 987802), (34, 581060), (40, 493901), (68, 290530), (85, 232424), (136, 145265), (170, 116212), (289, 68360), (340, 58106), (578, 34180), (680, 29053), (1156, 17090), (1445, 13672), (1709, 11560), (2312, 8545), (2890, 6836), (3418, 5780)]