201558885

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:614

約数の個数: 64

約数和(自身を含む): 375508224

約数和(自身を除く): 173949339

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 181, 187, 255, 397, 543, 561, 905, 935, 1191, 1985, 1991, 2715, 2805, 3077, 4367, 5955, 5973, 6749, 9231, 9955, 13101, 15385, 20247, 21835, 29865, 33745, 33847, 46155, 65505, 71857, 74239, 101235, 101541, 169235, 215571, 222717, 359285, 371195, 507705, 790427, 1077855, 1113585, 1221569, 2371281, 3664707, 3952135, 6107845, 11856405, 13437259, 18323535, 40311777, 67186295, 201558885]

約数ペア:

[(1, 201558885), (3, 67186295), (5, 40311777), (11, 18323535), (15, 13437259), (17, 11856405), (33, 6107845), (51, 3952135), (55, 3664707), (85, 2371281), (165, 1221569), (181, 1113585), (187, 1077855), (255, 790427), (397, 507705), (543, 371195), (561, 359285), (905, 222717), (935, 215571), (1191, 169235), (1985, 101541), (1991, 101235), (2715, 74239), (2805, 71857), (3077, 65505), (4367, 46155), (5955, 33847), (5973, 33745), (6749, 29865), (9231, 21835), (9955, 20247), (13101, 15385)]