31630820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{337}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 75721464

約数和(自身を除く): 44090644

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 337, 361, 380, 494, 674, 722, 988, 1235, 1348, 1444, 1685, 1805, 2470, 3370, 3610, 4381, 4693, 4940, 6403, 6740, 7220, 8762, 9386, 12806, 17524, 18772, 21905, 23465, 25612, 32015, 43810, 46930, 64030, 83239, 87620, 93860, 121657, 128060, 166478, 243314, 332956, 416195, 486628, 608285, 832390, 1216570, 1581541, 1664780, 2433140, 3163082, 6326164, 7907705, 15815410, 31630820]

約数ペア:

[(1, 31630820), (2, 15815410), (4, 7907705), (5, 6326164), (10, 3163082), (13, 2433140), (19, 1664780), (20, 1581541), (26, 1216570), (38, 832390), (52, 608285), (65, 486628), (76, 416195), (95, 332956), (130, 243314), (190, 166478), (247, 128060), (260, 121657), (337, 93860), (361, 87620), (380, 83239), (494, 64030), (674, 46930), (722, 43810), (988, 32015), (1235, 25612), (1348, 23465), (1444, 21905), (1685, 18772), (1805, 17524), (2470, 12806), (3370, 9386), (3610, 8762), (4381, 7220), (4693, 6740), (4940, 6403)]