640829808

素因数分解:

$2^4\times 3^2\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{523}}^1$

素因数の和:731

約数の個数: 120

約数和(自身を含む): 1838041088

約数和(自身を除く): 1197211280

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 67, 72, 127, 134, 144, 201, 254, 268, 381, 402, 508, 523, 536, 603, 762, 804, 1016, 1046, 1072, 1143, 1206, 1524, 1569, 1608, 2032, 2092, 2286, 2412, 3048, 3138, 3216, 4184, 4572, 4707, 4824, 6096, 6276, 8368, 8509, 9144, 9414, 9648, 12552, 17018, 18288, 18828, 25104, 25527, 34036, 35041, 37656, 51054, 66421, 68072, 70082, 75312, 76581, 102108, 105123, 132842, 136144, 140164, 153162, 199263, 204216, 210246, 265684, 280328, 306324, 315369, 398526, 408432, 420492, 531368, 560656, 597789, 612648, 630738, 797052, 840984, 1062736, 1195578, 1225296, 1261476, 1594104, 1681968, 2391156, 2522952, 3188208, 4450207, 4782312, 5045904, 8900414, 9564624, 13350621, 17800828, 26701242, 35601656, 40051863, 53402484, 71203312, 80103726, 106804968, 160207452, 213609936, 320414904, 640829808]

約数ペア:

[(1, 640829808), (2, 320414904), (3, 213609936), (4, 160207452), (6, 106804968), (8, 80103726), (9, 71203312), (12, 53402484), (16, 40051863), (18, 35601656), (24, 26701242), (36, 17800828), (48, 13350621), (67, 9564624), (72, 8900414), (127, 5045904), (134, 4782312), (144, 4450207), (201, 3188208), (254, 2522952), (268, 2391156), (381, 1681968), (402, 1594104), (508, 1261476), (523, 1225296), (536, 1195578), (603, 1062736), (762, 840984), (804, 797052), (1016, 630738), (1046, 612648), (1072, 597789), (1143, 560656), (1206, 531368), (1524, 420492), (1569, 408432), (1608, 398526), (2032, 315369), (2092, 306324), (2286, 280328), (2412, 265684), (3048, 210246), (3138, 204216), (3216, 199263), (4184, 153162), (4572, 140164), (4707, 136144), (4824, 132842), (6096, 105123), (6276, 102108), (8368, 76581), (8509, 75312), (9144, 70082), (9414, 68072), (9648, 66421), (12552, 51054), (17018, 37656), (18288, 35041), (18828, 34036), (25104, 25527)]