1921253720

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{251473}}^1$

素因数の和:251675

約数の個数: 32

約数和(自身を含む): 4345470720

約数和(自身を除く): 2424217000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 251473, 502946, 1005892, 1257365, 2011784, 2514730, 5029460, 10058920, 48031343, 96062686, 192125372, 240156715, 384250744, 480313430, 960626860, 1921253720]

約数ペア:

[(1, 1921253720), (2, 960626860), (4, 480313430), (5, 384250744), (8, 240156715), (10, 192125372), (20, 96062686), (40, 48031343), (191, 10058920), (382, 5029460), (764, 2514730), (955, 2011784), (1528, 1257365), (1910, 1005892), (3820, 502946), (7640, 251473)]