8438120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12409}}^1$

素因数の和:12437

約数の個数: 32

約数和(自身を含む): 20104200

約数和(自身を除く): 11666080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 12409, 24818, 49636, 62045, 99272, 124090, 210953, 248180, 421906, 496360, 843812, 1054765, 1687624, 2109530, 4219060, 8438120]

約数ペア:

[(1, 8438120), (2, 4219060), (4, 2109530), (5, 1687624), (8, 1054765), (10, 843812), (17, 496360), (20, 421906), (34, 248180), (40, 210953), (68, 124090), (85, 99272), (136, 62045), (170, 49636), (340, 24818), (680, 12409)]