256619090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{3863}}^1$

素因数の和:3963

約数の個数: 64

約数和(自身を含む): 576446976

約数和(自身を除く): 319827886

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 73, 91, 130, 146, 182, 365, 455, 511, 730, 910, 949, 1022, 1898, 2555, 3863, 4745, 5110, 6643, 7726, 9490, 13286, 19315, 27041, 33215, 38630, 50219, 54082, 66430, 100438, 135205, 251095, 270410, 281999, 351533, 502190, 563998, 703066, 1409995, 1757665, 1973993, 2819990, 3515330, 3665987, 3947986, 7331974, 9869965, 18329935, 19739930, 25661909, 36659870, 51323818, 128309545, 256619090]

約数ペア:

[(1, 256619090), (2, 128309545), (5, 51323818), (7, 36659870), (10, 25661909), (13, 19739930), (14, 18329935), (26, 9869965), (35, 7331974), (65, 3947986), (70, 3665987), (73, 3515330), (91, 2819990), (130, 1973993), (146, 1757665), (182, 1409995), (365, 703066), (455, 563998), (511, 502190), (730, 351533), (910, 281999), (949, 270410), (1022, 251095), (1898, 135205), (2555, 100438), (3863, 66430), (4745, 54082), (5110, 50219), (6643, 38630), (7726, 33215), (9490, 27041), (13286, 19315)]