78280240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{57559}}^1$

素因数の和:57589

約数の個数: 40

約数和(自身を含む): 192710880

約数和(自身を除く): 114430640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 57559, 115118, 230236, 287795, 460472, 575590, 920944, 978503, 1151180, 1957006, 2302360, 3914012, 4604720, 4892515, 7828024, 9785030, 15656048, 19570060, 39140120, 78280240]

約数ペア:

[(1, 78280240), (2, 39140120), (4, 19570060), (5, 15656048), (8, 9785030), (10, 7828024), (16, 4892515), (17, 4604720), (20, 3914012), (34, 2302360), (40, 1957006), (68, 1151180), (80, 978503), (85, 920944), (136, 575590), (170, 460472), (272, 287795), (340, 230236), (680, 115118), (1360, 57559)]