90992980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{26921}}^1$

素因数の和:26956

約数の個数: 36

約数和(自身を含む): 206922492

約数和(自身を除く): 115929512

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 26921, 53842, 107684, 134605, 269210, 349973, 538420, 699946, 1399892, 1749865, 3499730, 4549649, 6999460, 9099298, 18198596, 22748245, 45496490, 90992980]

約数ペア:

[(1, 90992980), (2, 45496490), (4, 22748245), (5, 18198596), (10, 9099298), (13, 6999460), (20, 4549649), (26, 3499730), (52, 1749865), (65, 1399892), (130, 699946), (169, 538420), (260, 349973), (338, 269210), (676, 134605), (845, 107684), (1690, 53842), (3380, 26921)]