19953040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13127}}^1$

素因数の和:13159

約数の個数: 40

約数和(自身を含む): 48836160

約数和(自身を除く): 28883120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13127, 26254, 52508, 65635, 105016, 131270, 210032, 249413, 262540, 498826, 525080, 997652, 1050160, 1247065, 1995304, 2494130, 3990608, 4988260, 9976520, 19953040]

約数ペア:

[(1, 19953040), (2, 9976520), (4, 4988260), (5, 3990608), (8, 2494130), (10, 1995304), (16, 1247065), (19, 1050160), (20, 997652), (38, 525080), (40, 498826), (76, 262540), (80, 249413), (95, 210032), (152, 131270), (190, 105016), (304, 65635), (380, 52508), (760, 26254), (1520, 13127)]