18296660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 40198032

約数和(自身を除く): 21901372

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 205, 212, 265, 410, 421, 530, 820, 842, 1060, 1684, 2105, 2173, 4210, 4346, 8420, 8692, 10865, 17261, 21730, 22313, 34522, 43460, 44626, 69044, 86305, 89252, 111565, 172610, 223130, 345220, 446260, 914833, 1829666, 3659332, 4574165, 9148330, 18296660]

約数ペア:

[(1, 18296660), (2, 9148330), (4, 4574165), (5, 3659332), (10, 1829666), (20, 914833), (41, 446260), (53, 345220), (82, 223130), (106, 172610), (164, 111565), (205, 89252), (212, 86305), (265, 69044), (410, 44626), (421, 43460), (530, 34522), (820, 22313), (842, 21730), (1060, 17261), (1684, 10865), (2105, 8692), (2173, 8420), (4210, 4346)]