642358755

素因数分解:

$3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{21727}}^1$

素因数の和:21817

約数の個数: 40

約数和(自身を含む): 1167315072

約数和(自身を除く): 524956317

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 81, 135, 219, 365, 405, 657, 1095, 1971, 3285, 5913, 9855, 21727, 29565, 65181, 108635, 195543, 325905, 586629, 977715, 1586071, 1759887, 2933145, 4758213, 7930355, 8799435, 14274639, 23791065, 42823917, 71373195, 128471751, 214119585, 642358755]

約数ペア:

[(1, 642358755), (3, 214119585), (5, 128471751), (9, 71373195), (15, 42823917), (27, 23791065), (45, 14274639), (73, 8799435), (81, 7930355), (135, 4758213), (219, 2933145), (365, 1759887), (405, 1586071), (657, 977715), (1095, 586629), (1971, 325905), (3285, 195543), (5913, 108635), (9855, 65181), (21727, 29565)]