90987778

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1\times {\mathrm{383}}^1$

素因数の和:702

約数の個数: 32

約数和(自身を含む): 159252480

約数和(自身を除く): 68264702

約数列:

[1, 2, 7, 14, 71, 142, 239, 383, 478, 497, 766, 994, 1673, 2681, 3346, 5362, 16969, 27193, 33938, 54386, 91537, 118783, 183074, 190351, 237566, 380702, 640759, 1281518, 6499127, 12998254, 45493889, 90987778]

約数ペア:

[(1, 90987778), (2, 45493889), (7, 12998254), (14, 6499127), (71, 1281518), (142, 640759), (239, 380702), (383, 237566), (478, 190351), (497, 183074), (766, 118783), (994, 91537), (1673, 54386), (2681, 33938), (3346, 27193), (5362, 16969)]