18921000980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135150007}}^1$

素因数の和:135150023

約数の個数: 24

約数和(自身を含む): 45410402688

約数和(自身を除く): 26489401708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135150007, 270300014, 540600028, 675750035, 946050049, 1351500070, 1892100098, 2703000140, 3784200196, 4730250245, 9460500490, 18921000980]

約数ペア:

[(1, 18921000980), (2, 9460500490), (4, 4730250245), (5, 3784200196), (7, 2703000140), (10, 1892100098), (14, 1351500070), (20, 946050049), (28, 675750035), (35, 540600028), (70, 270300014), (140, 135150007)]