1999215681710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{191}}^1\times {\mathrm{47279}}^1$

素因数の和:47634

約数の個数: 96

約数和(自身を含む): 3947082670080

約数和(自身を除く): 1947866988370

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 169, 191, 262, 338, 382, 655, 845, 955, 1310, 1690, 1703, 1910, 2483, 3406, 4966, 8515, 12415, 17030, 22139, 24830, 25021, 32279, 44278, 47279, 50042, 64558, 94558, 110695, 125105, 161395, 221390, 236395, 250210, 322790, 325273, 472790, 614627, 650546, 1229254, 1626365, 3073135, 3252730, 4228549, 6146270, 6193549, 7990151, 8457098, 9030289, 12387098, 15980302, 18060578, 21142745, 30967745, 39950755, 42285490, 45151445, 61935490, 79901510, 80516137, 90302890, 117393757, 161032274, 234787514, 402580685, 586968785, 805161370, 1046709781, 1173937570, 1182967859, 1526118841, 2093419562, 2365935718, 3052237682, 5233548905, 5914839295, 7630594205, 10467097810, 11829678590, 15261188410, 15378582167, 30757164334, 76892910835, 153785821670, 199921568171, 399843136342, 999607840855, 1999215681710]

約数ペア:

[(1, 1999215681710), (2, 999607840855), (5, 399843136342), (10, 199921568171), (13, 153785821670), (26, 76892910835), (65, 30757164334), (130, 15378582167), (131, 15261188410), (169, 11829678590), (191, 10467097810), (262, 7630594205), (338, 5914839295), (382, 5233548905), (655, 3052237682), (845, 2365935718), (955, 2093419562), (1310, 1526118841), (1690, 1182967859), (1703, 1173937570), (1910, 1046709781), (2483, 805161370), (3406, 586968785), (4966, 402580685), (8515, 234787514), (12415, 161032274), (17030, 117393757), (22139, 90302890), (24830, 80516137), (25021, 79901510), (32279, 61935490), (44278, 45151445), (47279, 42285490), (50042, 39950755), (64558, 30967745), (94558, 21142745), (110695, 18060578), (125105, 15980302), (161395, 12387098), (221390, 9030289), (236395, 8457098), (250210, 7990151), (322790, 6193549), (325273, 6146270), (472790, 4228549), (614627, 3252730), (650546, 3073135), (1229254, 1626365)]