90216980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1607}}^1$

素因数の和:2024

約数の個数: 48

約数和(自身を含む): 217195776

約数和(自身を除く): 126978796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 401, 802, 1604, 1607, 2005, 2807, 3214, 4010, 5614, 6428, 8020, 8035, 11228, 11249, 14035, 16070, 22498, 28070, 32140, 44996, 56140, 56245, 112490, 224980, 644407, 1288814, 2577628, 3222035, 4510849, 6444070, 9021698, 12888140, 18043396, 22554245, 45108490, 90216980]

約数ペア:

[(1, 90216980), (2, 45108490), (4, 22554245), (5, 18043396), (7, 12888140), (10, 9021698), (14, 6444070), (20, 4510849), (28, 3222035), (35, 2577628), (70, 1288814), (140, 644407), (401, 224980), (802, 112490), (1604, 56245), (1607, 56140), (2005, 44996), (2807, 32140), (3214, 28070), (4010, 22498), (5614, 16070), (6428, 14035), (8020, 11249), (8035, 11228)]