72728380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{523}}^1$

素因数の和:958

約数の個数: 48

約数和(自身を含む): 162419040

約数和(自身を除く): 89690660

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 409, 523, 818, 1046, 1636, 2045, 2092, 2615, 4090, 5230, 6953, 8180, 8891, 10460, 13906, 17782, 27812, 34765, 35564, 44455, 69530, 88910, 139060, 177820, 213907, 427814, 855628, 1069535, 2139070, 3636419, 4278140, 7272838, 14545676, 18182095, 36364190, 72728380]

約数ペア:

[(1, 72728380), (2, 36364190), (4, 18182095), (5, 14545676), (10, 7272838), (17, 4278140), (20, 3636419), (34, 2139070), (68, 1069535), (85, 855628), (170, 427814), (340, 213907), (409, 177820), (523, 139060), (818, 88910), (1046, 69530), (1636, 44455), (2045, 35564), (2092, 34765), (2615, 27812), (4090, 17782), (5230, 13906), (6953, 10460), (8180, 8891)]