31013680

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2789}}^1$

素因数の和:2941

約数の個数: 40

約数和(自身を含む): 72651600

約数和(自身を除く): 41637920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 2789, 5560, 5578, 11120, 11156, 13945, 22312, 27890, 44624, 55780, 111560, 223120, 387671, 775342, 1550684, 1938355, 3101368, 3876710, 6202736, 7753420, 15506840, 31013680]

約数ペア:

[(1, 31013680), (2, 15506840), (4, 7753420), (5, 6202736), (8, 3876710), (10, 3101368), (16, 1938355), (20, 1550684), (40, 775342), (80, 387671), (139, 223120), (278, 111560), (556, 55780), (695, 44624), (1112, 27890), (1390, 22312), (2224, 13945), (2780, 11156), (2789, 11120), (5560, 5578)]