636765620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1109}}^1\times {\mathrm{1511}}^1$

素因数の和:2648

約数の個数: 48

約数和(自身を含む): 1409788800

約数和(自身を除く): 773023180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1109, 1511, 2218, 3022, 4436, 5545, 6044, 7555, 11090, 15110, 21071, 22180, 28709, 30220, 42142, 57418, 84284, 105355, 114836, 143545, 210710, 287090, 421420, 574180, 1675699, 3351398, 6702796, 8378495, 16756990, 31838281, 33513980, 63676562, 127353124, 159191405, 318382810, 636765620]

約数ペア:

[(1, 636765620), (2, 318382810), (4, 159191405), (5, 127353124), (10, 63676562), (19, 33513980), (20, 31838281), (38, 16756990), (76, 8378495), (95, 6702796), (190, 3351398), (380, 1675699), (1109, 574180), (1511, 421420), (2218, 287090), (3022, 210710), (4436, 143545), (5545, 114836), (6044, 105355), (7555, 84284), (11090, 57418), (15110, 42142), (21071, 30220), (22180, 28709)]