256804506

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{433}}^1\times {\mathrm{523}}^1$

素因数の和:977

約数の個数: 80

約数和(自身を含む): 660416064

約数和(自身を除く): 403611558

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 433, 523, 567, 866, 1046, 1134, 1299, 1569, 2598, 3031, 3138, 3661, 3897, 4707, 6062, 7322, 7794, 9093, 9414, 10983, 11691, 14121, 18186, 21966, 23382, 27279, 28242, 32949, 35073, 42363, 54558, 65898, 70146, 81837, 84726, 98847, 163674, 197694, 226459, 245511, 296541, 452918, 491022, 593082, 679377, 1358754, 1585213, 2038131, 3170426, 4076262, 4755639, 6114393, 9511278, 12228786, 14266917, 18343179, 28533834, 36686358, 42800751, 85601502, 128402253, 256804506]

約数ペア:

[(1, 256804506), (2, 128402253), (3, 85601502), (6, 42800751), (7, 36686358), (9, 28533834), (14, 18343179), (18, 14266917), (21, 12228786), (27, 9511278), (42, 6114393), (54, 4755639), (63, 4076262), (81, 3170426), (126, 2038131), (162, 1585213), (189, 1358754), (378, 679377), (433, 593082), (523, 491022), (567, 452918), (866, 296541), (1046, 245511), (1134, 226459), (1299, 197694), (1569, 163674), (2598, 98847), (3031, 84726), (3138, 81837), (3661, 70146), (3897, 65898), (4707, 54558), (6062, 42363), (7322, 35073), (7794, 32949), (9093, 28242), (9414, 27279), (10983, 23382), (11691, 21966), (14121, 18186)]