2990980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{463}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 7015680

約数和(自身を除く): 4024700

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 463, 646, 926, 1292, 1615, 1852, 2315, 3230, 4630, 6460, 7871, 8797, 9260, 15742, 17594, 31484, 35188, 39355, 43985, 78710, 87970, 149549, 157420, 175940, 299098, 598196, 747745, 1495490, 2990980]

約数ペア:

[(1, 2990980), (2, 1495490), (4, 747745), (5, 598196), (10, 299098), (17, 175940), (19, 157420), (20, 149549), (34, 87970), (38, 78710), (68, 43985), (76, 39355), (85, 35188), (95, 31484), (170, 17594), (190, 15742), (323, 9260), (340, 8797), (380, 7871), (463, 6460), (646, 4630), (926, 3230), (1292, 2315), (1615, 1852)]