990657180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{12043}}^1$

素因数の和:12515

約数の個数: 72

約数和(自身を含む): 3011818992

約数和(自身を除く): 2021161812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 457, 914, 1371, 1828, 2285, 2742, 4113, 4570, 5484, 6855, 8226, 9140, 12043, 13710, 16452, 20565, 24086, 27420, 36129, 41130, 48172, 60215, 72258, 82260, 108387, 120430, 144516, 180645, 216774, 240860, 361290, 433548, 541935, 722580, 1083870, 2167740, 5503651, 11007302, 16510953, 22014604, 27518255, 33021906, 49532859, 55036510, 66043812, 82554765, 99065718, 110073020, 165109530, 198131436, 247664295, 330219060, 495328590, 990657180]

約数ペア:

[(1, 990657180), (2, 495328590), (3, 330219060), (4, 247664295), (5, 198131436), (6, 165109530), (9, 110073020), (10, 99065718), (12, 82554765), (15, 66043812), (18, 55036510), (20, 49532859), (30, 33021906), (36, 27518255), (45, 22014604), (60, 16510953), (90, 11007302), (180, 5503651), (457, 2167740), (914, 1083870), (1371, 722580), (1828, 541935), (2285, 433548), (2742, 361290), (4113, 240860), (4570, 216774), (5484, 180645), (6855, 144516), (8226, 120430), (9140, 108387), (12043, 82260), (13710, 72258), (16452, 60215), (20565, 48172), (24086, 41130), (27420, 36129)]