15203720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{7757}}^1$

素因数の和:7782

約数の個数: 48

約数和(自身を含む): 39798540

約数和(自身を除く): 24594820

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 7757, 15514, 31028, 38785, 54299, 62056, 77570, 108598, 155140, 217196, 271495, 310280, 380093, 434392, 542990, 760186, 1085980, 1520372, 1900465, 2171960, 3040744, 3800930, 7601860, 15203720]

約数ペア:

[(1, 15203720), (2, 7601860), (4, 3800930), (5, 3040744), (7, 2171960), (8, 1900465), (10, 1520372), (14, 1085980), (20, 760186), (28, 542990), (35, 434392), (40, 380093), (49, 310280), (56, 271495), (70, 217196), (98, 155140), (140, 108598), (196, 77570), (245, 62056), (280, 54299), (392, 38785), (490, 31028), (980, 15514), (1960, 7757)]