2000445980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{58733}}^1$

素因数の和:58886

約数の個数: 48

約数和(自身を含む): 4558698144

約数和(自身を除く): 2558252164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 1310, 1703, 2620, 3406, 6812, 8515, 17030, 34060, 58733, 117466, 234932, 293665, 587330, 763529, 1174660, 1527058, 3054116, 3817645, 7635290, 7694023, 15270580, 15388046, 30776092, 38470115, 76940230, 100022299, 153880460, 200044598, 400089196, 500111495, 1000222990, 2000445980]

約数ペア:

[(1, 2000445980), (2, 1000222990), (4, 500111495), (5, 400089196), (10, 200044598), (13, 153880460), (20, 100022299), (26, 76940230), (52, 38470115), (65, 30776092), (130, 15388046), (131, 15270580), (260, 7694023), (262, 7635290), (524, 3817645), (655, 3054116), (1310, 1527058), (1703, 1174660), (2620, 763529), (3406, 587330), (6812, 293665), (8515, 234932), (17030, 117466), (34060, 58733)]