639988120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{941159}}^1$

素因数の和:941187

約数の個数: 32

約数和(自身を含む): 1524679200

約数和(自身を除く): 884691080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 941159, 1882318, 3764636, 4705795, 7529272, 9411590, 15999703, 18823180, 31999406, 37646360, 63998812, 79998515, 127997624, 159997030, 319994060, 639988120]

約数ペア:

[(1, 639988120), (2, 319994060), (4, 159997030), (5, 127997624), (8, 79998515), (10, 63998812), (17, 37646360), (20, 31999406), (34, 18823180), (40, 15999703), (68, 9411590), (85, 7529272), (136, 4705795), (170, 3764636), (340, 1882318), (680, 941159)]