39917860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1439}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 89510400

約数和(自身を除く): 49592540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 730, 1387, 1439, 1460, 2774, 2878, 5548, 5756, 6935, 7195, 13870, 14390, 27341, 27740, 28780, 54682, 105047, 109364, 136705, 210094, 273410, 420188, 525235, 546820, 1050470, 1995893, 2100940, 3991786, 7983572, 9979465, 19958930, 39917860]

約数ペア:

[(1, 39917860), (2, 19958930), (4, 9979465), (5, 7983572), (10, 3991786), (19, 2100940), (20, 1995893), (38, 1050470), (73, 546820), (76, 525235), (95, 420188), (146, 273410), (190, 210094), (292, 136705), (365, 109364), (380, 105047), (730, 54682), (1387, 28780), (1439, 27740), (1460, 27341), (2774, 14390), (2878, 13870), (5548, 7195), (5756, 6935)]