19600665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 38223360

約数和(自身を除く): 18622695

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 41, 87, 105, 123, 145, 157, 203, 205, 287, 435, 471, 609, 615, 785, 861, 1015, 1099, 1189, 1435, 2355, 3045, 3297, 3567, 4305, 4553, 5495, 5945, 6437, 8323, 13659, 16485, 17835, 19311, 22765, 24969, 31871, 32185, 41615, 45059, 68295, 95613, 96555, 124845, 135177, 159355, 186673, 225295, 478065, 560019, 675885, 933365, 1306711, 2800095, 3920133, 6533555, 19600665]

約数ペア:

[(1, 19600665), (3, 6533555), (5, 3920133), (7, 2800095), (15, 1306711), (21, 933365), (29, 675885), (35, 560019), (41, 478065), (87, 225295), (105, 186673), (123, 159355), (145, 135177), (157, 124845), (203, 96555), (205, 95613), (287, 68295), (435, 45059), (471, 41615), (609, 32185), (615, 31871), (785, 24969), (861, 22765), (1015, 19311), (1099, 17835), (1189, 16485), (1435, 13659), (2355, 8323), (3045, 6437), (3297, 5945), (3567, 5495), (4305, 4553)]