21162800

素因数分解:

$2^4\times 5^2\times {\mathrm{191}}^1\times {\mathrm{277}}^1$

素因数の和:486

約数の個数: 60

約数和(自身を含む): 51294336

約数和(自身を除く): 30131536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 191, 200, 277, 382, 400, 554, 764, 955, 1108, 1385, 1528, 1910, 2216, 2770, 3056, 3820, 4432, 4775, 5540, 6925, 7640, 9550, 11080, 13850, 15280, 19100, 22160, 27700, 38200, 52907, 55400, 76400, 105814, 110800, 211628, 264535, 423256, 529070, 846512, 1058140, 1322675, 2116280, 2645350, 4232560, 5290700, 10581400, 21162800]

約数ペア:

[(1, 21162800), (2, 10581400), (4, 5290700), (5, 4232560), (8, 2645350), (10, 2116280), (16, 1322675), (20, 1058140), (25, 846512), (40, 529070), (50, 423256), (80, 264535), (100, 211628), (191, 110800), (200, 105814), (277, 76400), (382, 55400), (400, 52907), (554, 38200), (764, 27700), (955, 22160), (1108, 19100), (1385, 15280), (1528, 13850), (1910, 11080), (2216, 9550), (2770, 7640), (3056, 6925), (3820, 5540), (4432, 4775)]