64826480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42649}}^1$

素因数の和:42681

約数の個数: 40

約数和(自身を含む): 158658000

約数和(自身を除く): 93831520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 42649, 85298, 170596, 213245, 341192, 426490, 682384, 810331, 852980, 1620662, 1705960, 3241324, 3411920, 4051655, 6482648, 8103310, 12965296, 16206620, 32413240, 64826480]

約数ペア:

[(1, 64826480), (2, 32413240), (4, 16206620), (5, 12965296), (8, 8103310), (10, 6482648), (16, 4051655), (19, 3411920), (20, 3241324), (38, 1705960), (40, 1620662), (76, 852980), (80, 810331), (95, 682384), (152, 426490), (190, 341192), (304, 213245), (380, 170596), (760, 85298), (1520, 42649)]