20218561600

素因数分解:

$2^6\times 5^2\times {\mathrm{757}}^1\times {\mathrm{16693}}^1$

素因数の和:17472

約数の個数: 84

約数和(自身を含む): 49819002724

約数和(自身を除く): 29600441124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 757, 800, 1514, 1600, 3028, 3785, 6056, 7570, 12112, 15140, 16693, 18925, 24224, 30280, 33386, 37850, 48448, 60560, 66772, 75700, 83465, 121120, 133544, 151400, 166930, 242240, 267088, 302800, 333860, 417325, 534176, 605600, 667720, 834650, 1068352, 1211200, 1335440, 1669300, 2670880, 3338600, 5341760, 6677200, 12636601, 13354400, 25273202, 26708800, 50546404, 63183005, 101092808, 126366010, 202185616, 252732020, 315915025, 404371232, 505464040, 631830050, 808742464, 1010928080, 1263660100, 2021856160, 2527320200, 4043712320, 5054640400, 10109280800, 20218561600]

約数ペア:

[(1, 20218561600), (2, 10109280800), (4, 5054640400), (5, 4043712320), (8, 2527320200), (10, 2021856160), (16, 1263660100), (20, 1010928080), (25, 808742464), (32, 631830050), (40, 505464040), (50, 404371232), (64, 315915025), (80, 252732020), (100, 202185616), (160, 126366010), (200, 101092808), (320, 63183005), (400, 50546404), (757, 26708800), (800, 25273202), (1514, 13354400), (1600, 12636601), (3028, 6677200), (3785, 5341760), (6056, 3338600), (7570, 2670880), (12112, 1669300), (15140, 1335440), (16693, 1211200), (18925, 1068352), (24224, 834650), (30280, 667720), (33386, 605600), (37850, 534176), (48448, 417325), (60560, 333860), (66772, 302800), (75700, 267088), (83465, 242240), (121120, 166930), (133544, 151400)]