31287578

素因数分解:

$2^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 48

約数和(自身を含む): 57558600

約数和(自身を除く): 26271022

約数列:

[1, 2, 7, 14, 29, 49, 58, 98, 101, 109, 202, 203, 218, 406, 707, 763, 1414, 1421, 1526, 2842, 2929, 3161, 4949, 5341, 5858, 6322, 9898, 10682, 11009, 20503, 22018, 22127, 41006, 44254, 77063, 143521, 154126, 154889, 287042, 309778, 319261, 539441, 638522, 1078882, 2234827, 4469654, 15643789, 31287578]

約数ペア:

[(1, 31287578), (2, 15643789), (7, 4469654), (14, 2234827), (29, 1078882), (49, 638522), (58, 539441), (98, 319261), (101, 309778), (109, 287042), (202, 154889), (203, 154126), (218, 143521), (406, 77063), (707, 44254), (763, 41006), (1414, 22127), (1421, 22018), (1526, 20503), (2842, 11009), (2929, 10682), (3161, 9898), (4949, 6322), (5341, 5858)]