18742660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 40771584

約数和(自身を除く): 22028924

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 127, 157, 188, 235, 254, 314, 470, 508, 628, 635, 785, 940, 1270, 1570, 2540, 3140, 5969, 7379, 11938, 14758, 19939, 23876, 29516, 29845, 36895, 39878, 59690, 73790, 79756, 99695, 119380, 147580, 199390, 398780, 937133, 1874266, 3748532, 4685665, 9371330, 18742660]

約数ペア:

[(1, 18742660), (2, 9371330), (4, 4685665), (5, 3748532), (10, 1874266), (20, 937133), (47, 398780), (94, 199390), (127, 147580), (157, 119380), (188, 99695), (235, 79756), (254, 73790), (314, 59690), (470, 39878), (508, 36895), (628, 29845), (635, 29516), (785, 23876), (940, 19939), (1270, 14758), (1570, 11938), (2540, 7379), (3140, 5969)]