81597790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:597

約数の個数: 64

約数和(自身を含む): 166561920

約数和(自身を除く): 84964130

約数列:

[1, 2, 5, 10, 17, 23, 34, 41, 46, 82, 85, 115, 170, 205, 230, 391, 410, 509, 697, 782, 943, 1018, 1394, 1886, 1955, 2545, 3485, 3910, 4715, 5090, 6970, 8653, 9430, 11707, 16031, 17306, 20869, 23414, 32062, 41738, 43265, 58535, 80155, 86530, 104345, 117070, 160310, 199019, 208690, 354773, 398038, 479987, 709546, 959974, 995095, 1773865, 1990190, 2399935, 3547730, 4799870, 8159779, 16319558, 40798895, 81597790]

約数ペア:

[(1, 81597790), (2, 40798895), (5, 16319558), (10, 8159779), (17, 4799870), (23, 3547730), (34, 2399935), (41, 1990190), (46, 1773865), (82, 995095), (85, 959974), (115, 709546), (170, 479987), (205, 398038), (230, 354773), (391, 208690), (410, 199019), (509, 160310), (697, 117070), (782, 104345), (943, 86530), (1018, 80155), (1394, 58535), (1886, 43265), (1955, 41738), (2545, 32062), (3485, 23414), (3910, 20869), (4715, 17306), (5090, 16031), (6970, 11707), (8653, 9430)]