3171980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 7714560

約数和(自身を除く): 4542580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 163, 278, 326, 556, 652, 695, 815, 973, 1141, 1390, 1630, 1946, 2282, 2780, 3260, 3892, 4564, 4865, 5705, 9730, 11410, 19460, 22657, 22820, 45314, 90628, 113285, 158599, 226570, 317198, 453140, 634396, 792995, 1585990, 3171980]

約数ペア:

[(1, 3171980), (2, 1585990), (4, 792995), (5, 634396), (7, 453140), (10, 317198), (14, 226570), (20, 158599), (28, 113285), (35, 90628), (70, 45314), (139, 22820), (140, 22657), (163, 19460), (278, 11410), (326, 9730), (556, 5705), (652, 4865), (695, 4564), (815, 3892), (973, 3260), (1141, 2780), (1390, 2282), (1630, 1946)]