179942980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{2467}}^1$

素因数の和:3004

約数の個数: 48

約数和(自身を含む): 432867456

約数和(自身を除く): 252924476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 521, 1042, 2084, 2467, 2605, 3647, 4934, 5210, 7294, 9868, 10420, 12335, 14588, 17269, 18235, 24670, 34538, 36470, 49340, 69076, 72940, 86345, 172690, 345380, 1285307, 2570614, 5141228, 6426535, 8997149, 12853070, 17994298, 25706140, 35988596, 44985745, 89971490, 179942980]

約数ペア:

[(1, 179942980), (2, 89971490), (4, 44985745), (5, 35988596), (7, 25706140), (10, 17994298), (14, 12853070), (20, 8997149), (28, 6426535), (35, 5141228), (70, 2570614), (140, 1285307), (521, 345380), (1042, 172690), (2084, 86345), (2467, 72940), (2605, 69076), (3647, 49340), (4934, 36470), (5210, 34538), (7294, 24670), (9868, 18235), (10420, 17269), (12335, 14588)]