19699580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1103}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 44513280

約数和(自身を除く): 24813700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1103, 1786, 2206, 3572, 4412, 4465, 5515, 8930, 11030, 17860, 20957, 22060, 41914, 51841, 83828, 103682, 104785, 207364, 209570, 259205, 419140, 518410, 984979, 1036820, 1969958, 3939916, 4924895, 9849790, 19699580]

約数ペア:

[(1, 19699580), (2, 9849790), (4, 4924895), (5, 3939916), (10, 1969958), (19, 1036820), (20, 984979), (38, 518410), (47, 419140), (76, 259205), (94, 209570), (95, 207364), (188, 104785), (190, 103682), (235, 83828), (380, 51841), (470, 41914), (893, 22060), (940, 20957), (1103, 17860), (1786, 11030), (2206, 8930), (3572, 5515), (4412, 4465)]