87561404

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{857}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 181621440

約数和(自身を除く): 94060036

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 89, 164, 178, 287, 356, 574, 623, 857, 1148, 1246, 1714, 2492, 3428, 3649, 5999, 7298, 11998, 14596, 23996, 25543, 35137, 51086, 70274, 76273, 102172, 140548, 152546, 245959, 305092, 491918, 533911, 983836, 1067822, 2135644, 3127193, 6254386, 12508772, 21890351, 43780702, 87561404]

約数ペア:

[(1, 87561404), (2, 43780702), (4, 21890351), (7, 12508772), (14, 6254386), (28, 3127193), (41, 2135644), (82, 1067822), (89, 983836), (164, 533911), (178, 491918), (287, 305092), (356, 245959), (574, 152546), (623, 140548), (857, 102172), (1148, 76273), (1246, 70274), (1714, 51086), (2492, 35137), (3428, 25543), (3649, 23996), (5999, 14596), (7298, 11998)]