421200000020

素因数分解:

$2^2\times 5^1\times {\mathrm{4751}}^1\times {\mathrm{4432751}}^1$

素因数の和:4437511

約数の個数: 24

約数和(自身を含む): 884706375168

約数和(自身を除く): 463506375148

約数列:

[1, 2, 4, 5, 10, 20, 4751, 9502, 19004, 23755, 47510, 95020, 4432751, 8865502, 17731004, 22163755, 44327510, 88655020, 21060000001, 42120000002, 84240000004, 105300000005, 210600000010, 421200000020]

約数ペア:

[(1, 421200000020), (2, 210600000010), (4, 105300000005), (5, 84240000004), (10, 42120000002), (20, 21060000001), (4751, 88655020), (9502, 44327510), (19004, 22163755), (23755, 17731004), (47510, 8865502), (95020, 4432751)]