28336360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54493}}^1$

素因数の和:54517

約数の個数: 32

約数和(自身を含む): 68662440

約数和(自身を除く): 40326080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 54493, 108986, 217972, 272465, 435944, 544930, 708409, 1089860, 1416818, 2179720, 2833636, 3542045, 5667272, 7084090, 14168180, 28336360]

約数ペア:

[(1, 28336360), (2, 14168180), (4, 7084090), (5, 5667272), (8, 3542045), (10, 2833636), (13, 2179720), (20, 1416818), (26, 1089860), (40, 708409), (52, 544930), (65, 435944), (104, 272465), (130, 217972), (260, 108986), (520, 54493)]