31018455

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3119}}^1$

素因数の和:3160

約数の個数: 48

約数和(自身を含む): 61326720

約数和(自身を除く): 30308265

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1989, 3119, 3315, 9357, 9945, 15595, 28071, 40547, 46785, 53023, 121641, 140355, 159069, 202735, 265115, 364923, 477207, 608205, 689299, 795345, 1824615, 2067897, 2386035, 3446495, 6203691, 10339485, 31018455]

約数ペア:

[(1, 31018455), (3, 10339485), (5, 6203691), (9, 3446495), (13, 2386035), (15, 2067897), (17, 1824615), (39, 795345), (45, 689299), (51, 608205), (65, 477207), (85, 364923), (117, 265115), (153, 202735), (195, 159069), (221, 140355), (255, 121641), (585, 53023), (663, 46785), (765, 40547), (1105, 28071), (1989, 15595), (3119, 9945), (3315, 9357)]