18880120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67429}}^1$

素因数の和:67447

約数の個数: 32

約数和(自身を含む): 48549600

約数和(自身を除く): 29669480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67429, 134858, 269716, 337145, 472003, 539432, 674290, 944006, 1348580, 1888012, 2360015, 2697160, 3776024, 4720030, 9440060, 18880120]

約数ペア:

[(1, 18880120), (2, 9440060), (4, 4720030), (5, 3776024), (7, 2697160), (8, 2360015), (10, 1888012), (14, 1348580), (20, 944006), (28, 674290), (35, 539432), (40, 472003), (56, 337145), (70, 269716), (140, 134858), (280, 67429)]