257295040

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{701}}^1$

素因数の和:786

約数の個数: 112

約数和(自身を含む): 650467584

約数和(自身を除く): 393172544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 148, 155, 160, 185, 248, 296, 310, 320, 370, 496, 592, 620, 701, 740, 992, 1147, 1184, 1240, 1402, 1480, 1984, 2294, 2368, 2480, 2804, 2960, 3505, 4588, 4960, 5608, 5735, 5920, 7010, 9176, 9920, 11216, 11470, 11840, 14020, 18352, 21731, 22432, 22940, 25937, 28040, 36704, 43462, 44864, 45880, 51874, 56080, 73408, 86924, 91760, 103748, 108655, 112160, 129685, 173848, 183520, 207496, 217310, 224320, 259370, 347696, 367040, 414992, 434620, 518740, 695392, 804047, 829984, 869240, 1037480, 1390784, 1608094, 1659968, 1738480, 2074960, 3216188, 3476960, 4020235, 4149920, 6432376, 6953920, 8040470, 8299840, 12864752, 16080940, 25729504, 32161880, 51459008, 64323760, 128647520, 257295040]

約数ペア:

[(1, 257295040), (2, 128647520), (4, 64323760), (5, 51459008), (8, 32161880), (10, 25729504), (16, 16080940), (20, 12864752), (31, 8299840), (32, 8040470), (37, 6953920), (40, 6432376), (62, 4149920), (64, 4020235), (74, 3476960), (80, 3216188), (124, 2074960), (148, 1738480), (155, 1659968), (160, 1608094), (185, 1390784), (248, 1037480), (296, 869240), (310, 829984), (320, 804047), (370, 695392), (496, 518740), (592, 434620), (620, 414992), (701, 367040), (740, 347696), (992, 259370), (1147, 224320), (1184, 217310), (1240, 207496), (1402, 183520), (1480, 173848), (1984, 129685), (2294, 112160), (2368, 108655), (2480, 103748), (2804, 91760), (2960, 86924), (3505, 73408), (4588, 56080), (4960, 51874), (5608, 45880), (5735, 44864), (5920, 43462), (7010, 36704), (9176, 28040), (9920, 25937), (11216, 22940), (11470, 22432), (11840, 21731), (14020, 18352)]