20105917195

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{599}}^1\times {\mathrm{73771}}^1$

素因数の和:74395

約数の個数: 32

約数和(自身を含む): 29744870400

約数和(自身を除く): 9638953205

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 599, 2995, 4193, 7787, 20965, 38935, 54509, 73771, 272545, 368855, 516397, 959023, 2581985, 4795115, 6713161, 33565805, 44188829, 220944145, 309321803, 574454777, 1546609015, 2872273885, 4021183439, 20105917195]

約数ペア:

[(1, 20105917195), (5, 4021183439), (7, 2872273885), (13, 1546609015), (35, 574454777), (65, 309321803), (91, 220944145), (455, 44188829), (599, 33565805), (2995, 6713161), (4193, 4795115), (7787, 2581985), (20965, 959023), (38935, 516397), (54509, 368855), (73771, 272545)]