128478896

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{88241}}^1$

素因数の和:88269

約数の個数: 40

約数和(自身を含む): 306376224

約数和(自身を除く): 177897328

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 88241, 176482, 352964, 617687, 705928, 1147133, 1235374, 1411856, 2294266, 2470748, 4588532, 4941496, 8029931, 9177064, 9882992, 16059862, 18354128, 32119724, 64239448, 128478896]

約数ペア:

[(1, 128478896), (2, 64239448), (4, 32119724), (7, 18354128), (8, 16059862), (13, 9882992), (14, 9177064), (16, 8029931), (26, 4941496), (28, 4588532), (52, 2470748), (56, 2294266), (91, 1411856), (104, 1235374), (112, 1147133), (182, 705928), (208, 617687), (364, 352964), (728, 176482), (1456, 88241)]