20170872

素因数分解:

$2^3\times 3^2\times {\mathrm{433}}^1\times {\mathrm{647}}^1$

素因数の和:1092

約数の個数: 48

約数和(自身を含む): 54840240

約数和(自身を除く): 34669368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 433, 647, 866, 1294, 1299, 1732, 1941, 2588, 2598, 3464, 3882, 3897, 5176, 5196, 5823, 7764, 7794, 10392, 11646, 15528, 15588, 23292, 31176, 46584, 280151, 560302, 840453, 1120604, 1680906, 2241208, 2521359, 3361812, 5042718, 6723624, 10085436, 20170872]

約数ペア:

[(1, 20170872), (2, 10085436), (3, 6723624), (4, 5042718), (6, 3361812), (8, 2521359), (9, 2241208), (12, 1680906), (18, 1120604), (24, 840453), (36, 560302), (72, 280151), (433, 46584), (647, 31176), (866, 23292), (1294, 15588), (1299, 15528), (1732, 11646), (1941, 10392), (2588, 7794), (2598, 7764), (3464, 5823), (3882, 5196), (3897, 5176)]