400643854

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{12641}}^1$

素因数の和:12732

約数の個数: 32

約数和(自身を含む): 688129344

約数和(自身を除く): 287485490

約数列:

[1, 2, 13, 23, 26, 46, 53, 106, 299, 598, 689, 1219, 1378, 2438, 12641, 15847, 25282, 31694, 164333, 290743, 328666, 581486, 669973, 1339946, 3779659, 7559318, 8709649, 15409379, 17419298, 30818758, 200321927, 400643854]

約数ペア:

[(1, 400643854), (2, 200321927), (13, 30818758), (23, 17419298), (26, 15409379), (46, 8709649), (53, 7559318), (106, 3779659), (299, 1339946), (598, 669973), (689, 581486), (1219, 328666), (1378, 290743), (2438, 164333), (12641, 31694), (15847, 25282)]