22137800

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1559}}^1$

素因数の和:1646

約数の個数: 48

約数和(自身を含む): 52228800

約数和(自身を除く): 30091000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1420, 1559, 1775, 2840, 3118, 3550, 6236, 7100, 7795, 12472, 14200, 15590, 31180, 38975, 62360, 77950, 110689, 155900, 221378, 311800, 442756, 553445, 885512, 1106890, 2213780, 2767225, 4427560, 5534450, 11068900, 22137800]

約数ペア:

[(1, 22137800), (2, 11068900), (4, 5534450), (5, 4427560), (8, 2767225), (10, 2213780), (20, 1106890), (25, 885512), (40, 553445), (50, 442756), (71, 311800), (100, 221378), (142, 155900), (200, 110689), (284, 77950), (355, 62360), (568, 38975), (710, 31180), (1420, 15590), (1559, 14200), (1775, 12472), (2840, 7795), (3118, 7100), (3550, 6236)]