28970720

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10651}}^1$

素因数の和:10683

約数の個数: 48

約数和(自身を含む): 72476208

約数和(自身を除く): 43505488

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 10651, 21302, 42604, 53255, 85208, 106510, 170416, 181067, 213020, 340832, 362134, 426040, 724268, 852080, 905335, 1448536, 1704160, 1810670, 2897072, 3621340, 5794144, 7242680, 14485360, 28970720]

約数ペア:

[(1, 28970720), (2, 14485360), (4, 7242680), (5, 5794144), (8, 3621340), (10, 2897072), (16, 1810670), (17, 1704160), (20, 1448536), (32, 905335), (34, 852080), (40, 724268), (68, 426040), (80, 362134), (85, 340832), (136, 213020), (160, 181067), (170, 170416), (272, 106510), (340, 85208), (544, 53255), (680, 42604), (1360, 21302), (2720, 10651)]