20235919970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{42821}}^1$

素因数の和:43035

約数の個数: 64

約数和(自身を含む): 42868590336

約数和(自身を除く): 22632670366

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 157, 215, 301, 314, 430, 602, 785, 1099, 1505, 1570, 2198, 3010, 5495, 6751, 10990, 13502, 33755, 42821, 47257, 67510, 85642, 94514, 214105, 236285, 299747, 428210, 472570, 599494, 1498735, 1841303, 2997470, 3682606, 6722897, 9206515, 12889121, 13445794, 18413030, 25778242, 33614485, 47060279, 64445605, 67228970, 94120558, 128891210, 235301395, 289084571, 470602790, 578169142, 1445422855, 2023591997, 2890845710, 4047183994, 10117959985, 20235919970]

約数ペア:

[(1, 20235919970), (2, 10117959985), (5, 4047183994), (7, 2890845710), (10, 2023591997), (14, 1445422855), (35, 578169142), (43, 470602790), (70, 289084571), (86, 235301395), (157, 128891210), (215, 94120558), (301, 67228970), (314, 64445605), (430, 47060279), (602, 33614485), (785, 25778242), (1099, 18413030), (1505, 13445794), (1570, 12889121), (2198, 9206515), (3010, 6722897), (5495, 3682606), (6751, 2997470), (10990, 1841303), (13502, 1498735), (33755, 599494), (42821, 472570), (47257, 428210), (67510, 299747), (85642, 236285), (94514, 214105)]