20058380

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 23487220

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 127, 149, 212, 254, 265, 298, 508, 530, 596, 635, 745, 1060, 1270, 1490, 2540, 2980, 6731, 7897, 13462, 15794, 18923, 26924, 31588, 33655, 37846, 39485, 67310, 75692, 78970, 94615, 134620, 157940, 189230, 378460, 1002919, 2005838, 4011676, 5014595, 10029190, 20058380]

約数ペア:

[(1, 20058380), (2, 10029190), (4, 5014595), (5, 4011676), (10, 2005838), (20, 1002919), (53, 378460), (106, 189230), (127, 157940), (149, 134620), (212, 94615), (254, 78970), (265, 75692), (298, 67310), (508, 39485), (530, 37846), (596, 33655), (635, 31588), (745, 26924), (1060, 18923), (1270, 15794), (1490, 13462), (2540, 7897), (2980, 6731)]