17970580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 48

約数和(自身を含む): 40138560

約数和(自身を除く): 22167980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 262, 361, 380, 524, 655, 722, 1310, 1444, 1805, 2489, 2620, 3610, 4978, 6859, 7220, 9956, 12445, 13718, 24890, 27436, 34295, 47291, 49780, 68590, 94582, 137180, 189164, 236455, 472910, 898529, 945820, 1797058, 3594116, 4492645, 8985290, 17970580]

約数ペア:

[(1, 17970580), (2, 8985290), (4, 4492645), (5, 3594116), (10, 1797058), (19, 945820), (20, 898529), (38, 472910), (76, 236455), (95, 189164), (131, 137180), (190, 94582), (262, 68590), (361, 49780), (380, 47291), (524, 34295), (655, 27436), (722, 24890), (1310, 13718), (1444, 12445), (1805, 9956), (2489, 7220), (2620, 6859), (3610, 4978)]