39912460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 98537040

約数和(自身を除く): 58624580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 139, 140, 196, 245, 278, 293, 490, 556, 586, 695, 973, 980, 1172, 1390, 1465, 1946, 2051, 2780, 2930, 3892, 4102, 4865, 5860, 6811, 8204, 9730, 10255, 13622, 14357, 19460, 20510, 27244, 28714, 34055, 40727, 41020, 57428, 68110, 71785, 81454, 136220, 143570, 162908, 203635, 285089, 287140, 407270, 570178, 814540, 1140356, 1425445, 1995623, 2850890, 3991246, 5701780, 7982492, 9978115, 19956230, 39912460]

約数ペア:

[(1, 39912460), (2, 19956230), (4, 9978115), (5, 7982492), (7, 5701780), (10, 3991246), (14, 2850890), (20, 1995623), (28, 1425445), (35, 1140356), (49, 814540), (70, 570178), (98, 407270), (139, 287140), (140, 285089), (196, 203635), (245, 162908), (278, 143570), (293, 136220), (490, 81454), (556, 71785), (586, 68110), (695, 57428), (973, 41020), (980, 40727), (1172, 34055), (1390, 28714), (1465, 27244), (1946, 20510), (2051, 19460), (2780, 14357), (2930, 13622), (3892, 10255), (4102, 9730), (4865, 8204), (5860, 6811)]