39887960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 106868160

約数和(自身を除く): 66980200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 49, 56, 70, 94, 98, 140, 188, 196, 235, 245, 280, 329, 376, 392, 433, 470, 490, 658, 866, 940, 980, 1316, 1645, 1732, 1880, 1960, 2165, 2303, 2632, 3031, 3290, 3464, 4330, 4606, 6062, 6580, 8660, 9212, 11515, 12124, 13160, 15155, 17320, 18424, 20351, 21217, 23030, 24248, 30310, 40702, 42434, 46060, 60620, 81404, 84868, 92120, 101755, 106085, 121240, 142457, 162808, 169736, 203510, 212170, 284914, 407020, 424340, 569828, 712285, 814040, 848680, 997199, 1139656, 1424570, 1994398, 2849140, 3988796, 4985995, 5698280, 7977592, 9971990, 19943980, 39887960]

約数ペア:

[(1, 39887960), (2, 19943980), (4, 9971990), (5, 7977592), (7, 5698280), (8, 4985995), (10, 3988796), (14, 2849140), (20, 1994398), (28, 1424570), (35, 1139656), (40, 997199), (47, 848680), (49, 814040), (56, 712285), (70, 569828), (94, 424340), (98, 407020), (140, 284914), (188, 212170), (196, 203510), (235, 169736), (245, 162808), (280, 142457), (329, 121240), (376, 106085), (392, 101755), (433, 92120), (470, 84868), (490, 81404), (658, 60620), (866, 46060), (940, 42434), (980, 40702), (1316, 30310), (1645, 24248), (1732, 23030), (1880, 21217), (1960, 20351), (2165, 18424), (2303, 17320), (2632, 15155), (3031, 13160), (3290, 12124), (3464, 11515), (4330, 9212), (4606, 8660), (6062, 6580)]