128661652

素因数分解:

$2^2\times 7^2\times {\mathrm{401}}^1\times {\mathrm{1637}}^1$

素因数の和:2056

約数の個数: 36

約数和(自身を含む): 262731924

約数和(自身を除く): 134070272

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 401, 802, 1604, 1637, 2807, 3274, 5614, 6548, 11228, 11459, 19649, 22918, 39298, 45836, 78596, 80213, 160426, 320852, 656437, 1312874, 2625748, 4595059, 9190118, 18380236, 32165413, 64330826, 128661652]

約数ペア:

[(1, 128661652), (2, 64330826), (4, 32165413), (7, 18380236), (14, 9190118), (28, 4595059), (49, 2625748), (98, 1312874), (196, 656437), (401, 320852), (802, 160426), (1604, 80213), (1637, 78596), (2807, 45836), (3274, 39298), (5614, 22918), (6548, 19649), (11228, 11459)]