199444900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{104971}}^1$

素因数の和:105004

約数の個数: 36

約数和(自身を含む): 455578480

約数和(自身を除く): 256133580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 104971, 209942, 419884, 524855, 1049710, 1994449, 2099420, 2624275, 3988898, 5248550, 7977796, 9972245, 10497100, 19944490, 39888980, 49861225, 99722450, 199444900]

約数ペア:

[(1, 199444900), (2, 99722450), (4, 49861225), (5, 39888980), (10, 19944490), (19, 10497100), (20, 9972245), (25, 7977796), (38, 5248550), (50, 3988898), (76, 2624275), (95, 2099420), (100, 1994449), (190, 1049710), (380, 524855), (475, 419884), (950, 209942), (1900, 104971)]