208049140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61553}}^1$

素因数の和:61588

約数の個数: 36

約数和(自身を含む): 473104044

約数和(自身を除く): 265054904

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 61553, 123106, 246212, 307765, 615530, 800189, 1231060, 1600378, 3200756, 4000945, 8001890, 10402457, 16003780, 20804914, 41609828, 52012285, 104024570, 208049140]

約数ペア:

[(1, 208049140), (2, 104024570), (4, 52012285), (5, 41609828), (10, 20804914), (13, 16003780), (20, 10402457), (26, 8001890), (52, 4000945), (65, 3200756), (130, 1600378), (169, 1231060), (260, 800189), (338, 615530), (676, 307765), (845, 246212), (1690, 123106), (3380, 61553)]