320499220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1\times {\mathrm{1559}}^1$

素因数の和:2128

約数の個数: 48

約数和(自身を含む): 710236800

約数和(自身を除く): 389737580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 541, 1082, 1559, 2164, 2705, 3118, 5410, 6236, 7795, 10279, 10820, 15590, 20558, 29621, 31180, 41116, 51395, 59242, 102790, 118484, 148105, 205580, 296210, 592420, 843419, 1686838, 3373676, 4217095, 8434190, 16024961, 16868380, 32049922, 64099844, 80124805, 160249610, 320499220]

約数ペア:

[(1, 320499220), (2, 160249610), (4, 80124805), (5, 64099844), (10, 32049922), (19, 16868380), (20, 16024961), (38, 8434190), (76, 4217095), (95, 3373676), (190, 1686838), (380, 843419), (541, 592420), (1082, 296210), (1559, 205580), (2164, 148105), (2705, 118484), (3118, 102790), (5410, 59242), (6236, 51395), (7795, 41116), (10279, 31180), (10820, 29621), (15590, 20558)]