12047980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1831}}^1$

素因数の和:1894

約数の個数: 48

約数和(自身を含む): 29546496

約数和(自身を除く): 17498516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 1831, 3290, 3662, 6580, 7324, 9155, 12817, 18310, 25634, 36620, 51268, 64085, 86057, 128170, 172114, 256340, 344228, 430285, 602399, 860570, 1204798, 1721140, 2409596, 3011995, 6023990, 12047980]

約数ペア:

[(1, 12047980), (2, 6023990), (4, 3011995), (5, 2409596), (7, 1721140), (10, 1204798), (14, 860570), (20, 602399), (28, 430285), (35, 344228), (47, 256340), (70, 172114), (94, 128170), (140, 86057), (188, 64085), (235, 51268), (329, 36620), (470, 25634), (658, 18310), (940, 12817), (1316, 9155), (1645, 7324), (1831, 6580), (3290, 3662)]