20581016

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3691}}^1$

素因数の和:3755

約数の個数: 32

約数和(自身を含む): 41867280

約数和(自身を除く): 21286264

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3691, 5576, 7382, 14764, 29528, 62747, 125494, 151331, 250988, 302662, 501976, 605324, 1210648, 2572627, 5145254, 10290508, 20581016]

約数ペア:

[(1, 20581016), (2, 10290508), (4, 5145254), (8, 2572627), (17, 1210648), (34, 605324), (41, 501976), (68, 302662), (82, 250988), (136, 151331), (164, 125494), (328, 62747), (697, 29528), (1394, 14764), (2788, 7382), (3691, 5576)]