1969400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 4705800

約数和(自身を除く): 2736400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 229, 344, 430, 458, 860, 916, 1075, 1145, 1720, 1832, 2150, 2290, 4300, 4580, 5725, 8600, 9160, 9847, 11450, 19694, 22900, 39388, 45800, 49235, 78776, 98470, 196940, 246175, 393880, 492350, 984700, 1969400]

約数ペア:

[(1, 1969400), (2, 984700), (4, 492350), (5, 393880), (8, 246175), (10, 196940), (20, 98470), (25, 78776), (40, 49235), (43, 45800), (50, 39388), (86, 22900), (100, 19694), (172, 11450), (200, 9847), (215, 9160), (229, 8600), (344, 5725), (430, 4580), (458, 4300), (860, 2290), (916, 2150), (1075, 1832), (1145, 1720)]