31870180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{877}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 70801920

約数和(自身を除く): 38931740

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 79, 92, 115, 158, 230, 316, 395, 460, 790, 877, 1580, 1754, 1817, 3508, 3634, 4385, 7268, 8770, 9085, 17540, 18170, 20171, 36340, 40342, 69283, 80684, 100855, 138566, 201710, 277132, 346415, 403420, 692830, 1385660, 1593509, 3187018, 6374036, 7967545, 15935090, 31870180]

約数ペア:

[(1, 31870180), (2, 15935090), (4, 7967545), (5, 6374036), (10, 3187018), (20, 1593509), (23, 1385660), (46, 692830), (79, 403420), (92, 346415), (115, 277132), (158, 201710), (230, 138566), (316, 100855), (395, 80684), (460, 69283), (790, 40342), (877, 36340), (1580, 20171), (1754, 18170), (1817, 17540), (3508, 9085), (3634, 8770), (4385, 7268)]