81420970

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{1051}}^1$

素因数の和:1246

約数の個数: 32

約数和(自身を含む): 150276096

約数和(自身を除く): 68855126

約数列:

[1, 2, 5, 10, 61, 122, 127, 254, 305, 610, 635, 1051, 1270, 2102, 5255, 7747, 10510, 15494, 38735, 64111, 77470, 128222, 133477, 266954, 320555, 641110, 667385, 1334770, 8142097, 16284194, 40710485, 81420970]

約数ペア:

[(1, 81420970), (2, 40710485), (5, 16284194), (10, 8142097), (61, 1334770), (122, 667385), (127, 641110), (254, 320555), (305, 266954), (610, 133477), (635, 128222), (1051, 77470), (1270, 64111), (2102, 38735), (5255, 15494), (7747, 10510)]