257503168

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{2437}}^1$

素因数の和:2589

約数の個数: 56

約数和(自身を含む): 554849792

約数和(自身を除く): 297346624

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 127, 208, 254, 416, 508, 832, 1016, 1651, 2032, 2437, 3302, 4064, 4874, 6604, 8128, 9748, 13208, 19496, 26416, 31681, 38992, 52832, 63362, 77984, 105664, 126724, 155968, 253448, 309499, 506896, 618998, 1013792, 1237996, 2027584, 2475992, 4023487, 4951984, 8046974, 9903968, 16093948, 19807936, 32187896, 64375792, 128751584, 257503168]

約数ペア:

[(1, 257503168), (2, 128751584), (4, 64375792), (8, 32187896), (13, 19807936), (16, 16093948), (26, 9903968), (32, 8046974), (52, 4951984), (64, 4023487), (104, 2475992), (127, 2027584), (208, 1237996), (254, 1013792), (416, 618998), (508, 506896), (832, 309499), (1016, 253448), (1651, 155968), (2032, 126724), (2437, 105664), (3302, 77984), (4064, 63362), (4874, 52832), (6604, 38992), (8128, 31681), (9748, 26416), (13208, 19496)]