31217680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2309}}^1$

素因数の和:2348

約数の個数: 60

約数和(自身を含む): 78627780

約数和(自身を除く): 47410100

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2309, 2704, 3380, 4618, 6760, 9236, 11545, 13520, 18472, 23090, 30017, 36944, 46180, 60034, 92360, 120068, 150085, 184720, 240136, 300170, 390221, 480272, 600340, 780442, 1200680, 1560884, 1951105, 2401360, 3121768, 3902210, 6243536, 7804420, 15608840, 31217680]

約数ペア:

[(1, 31217680), (2, 15608840), (4, 7804420), (5, 6243536), (8, 3902210), (10, 3121768), (13, 2401360), (16, 1951105), (20, 1560884), (26, 1200680), (40, 780442), (52, 600340), (65, 480272), (80, 390221), (104, 300170), (130, 240136), (169, 184720), (208, 150085), (260, 120068), (338, 92360), (520, 60034), (676, 46180), (845, 36944), (1040, 30017), (1352, 23090), (1690, 18472), (2309, 13520), (2704, 11545), (3380, 9236), (4618, 6760)]