129287720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{190129}}^1$

素因数の和:190157

約数の個数: 32

約数和(自身を含む): 308010600

約数和(自身を除く): 178722880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 190129, 380258, 760516, 950645, 1521032, 1901290, 3232193, 3802580, 6464386, 7605160, 12928772, 16160965, 25857544, 32321930, 64643860, 129287720]

約数ペア:

[(1, 129287720), (2, 64643860), (4, 32321930), (5, 25857544), (8, 16160965), (10, 12928772), (17, 7605160), (20, 6464386), (34, 3802580), (40, 3232193), (68, 1901290), (85, 1521032), (136, 950645), (170, 760516), (340, 380258), (680, 190129)]