19908120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{165901}}^1$

素因数の和:165915

約数の個数: 32

約数和(自身を含む): 59724720

約数和(自身を除く): 39816600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 165901, 331802, 497703, 663604, 829505, 995406, 1327208, 1659010, 1990812, 2488515, 3318020, 3981624, 4977030, 6636040, 9954060, 19908120]

約数ペア:

[(1, 19908120), (2, 9954060), (3, 6636040), (4, 4977030), (5, 3981624), (6, 3318020), (8, 2488515), (10, 1990812), (12, 1659010), (15, 1327208), (20, 995406), (24, 829505), (30, 663604), (40, 497703), (60, 331802), (120, 165901)]