78508720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{57727}}^1$

素因数の和:57757

約数の個数: 40

約数和(自身を含む): 193273344

約数和(自身を除く): 114764624

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 57727, 115454, 230908, 288635, 461816, 577270, 923632, 981359, 1154540, 1962718, 2309080, 3925436, 4618160, 4906795, 7850872, 9813590, 15701744, 19627180, 39254360, 78508720]

約数ペア:

[(1, 78508720), (2, 39254360), (4, 19627180), (5, 15701744), (8, 9813590), (10, 7850872), (16, 4906795), (17, 4618160), (20, 3925436), (34, 2309080), (40, 1962718), (68, 1154540), (80, 981359), (85, 923632), (136, 577270), (170, 461816), (272, 288635), (340, 230908), (680, 115454), (1360, 57727)]