671990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:208

約数の個数: 32

約数和(自身を含む): 1360800

約数和(自身を除く): 688810

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 149, 205, 298, 410, 451, 745, 902, 1490, 1639, 2255, 3278, 4510, 6109, 8195, 12218, 16390, 30545, 61090, 67199, 134398, 335995, 671990]

約数ペア:

[(1, 671990), (2, 335995), (5, 134398), (10, 67199), (11, 61090), (22, 30545), (41, 16390), (55, 12218), (82, 8195), (110, 6109), (149, 4510), (205, 3278), (298, 2255), (410, 1639), (451, 1490), (745, 902)]