128129456

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{88001}}^1$

素因数の和:88029

約数の個数: 40

約数和(自身を含む): 305542944

約数和(自身を除く): 177413488

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 88001, 176002, 352004, 616007, 704008, 1144013, 1232014, 1408016, 2288026, 2464028, 4576052, 4928056, 8008091, 9152104, 9856112, 16016182, 18304208, 32032364, 64064728, 128129456]

約数ペア:

[(1, 128129456), (2, 64064728), (4, 32032364), (7, 18304208), (8, 16016182), (13, 9856112), (14, 9152104), (16, 8008091), (26, 4928056), (28, 4576052), (52, 2464028), (56, 2288026), (91, 1408016), (104, 1232014), (112, 1144013), (182, 704008), (208, 616007), (364, 352004), (728, 176002), (1456, 88001)]