205140720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{44987}}^1$

素因数の和:45022

約数の個数: 80

約数和(自身を含む): 669421440

約数和(自身を除く): 464280720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 44987, 89974, 134961, 179948, 224935, 269922, 359896, 449870, 539844, 674805, 719792, 854753, 899740, 1079688, 1349610, 1709506, 1799480, 2159376, 2564259, 2699220, 3419012, 3598960, 4273765, 5128518, 5398440, 6838024, 8547530, 10257036, 10796880, 12821295, 13676048, 17095060, 20514072, 25642590, 34190120, 41028144, 51285180, 68380240, 102570360, 205140720]

約数ペア:

[(1, 205140720), (2, 102570360), (3, 68380240), (4, 51285180), (5, 41028144), (6, 34190120), (8, 25642590), (10, 20514072), (12, 17095060), (15, 13676048), (16, 12821295), (19, 10796880), (20, 10257036), (24, 8547530), (30, 6838024), (38, 5398440), (40, 5128518), (48, 4273765), (57, 3598960), (60, 3419012), (76, 2699220), (80, 2564259), (95, 2159376), (114, 1799480), (120, 1709506), (152, 1349610), (190, 1079688), (228, 899740), (240, 854753), (285, 719792), (304, 674805), (380, 539844), (456, 449870), (570, 359896), (760, 269922), (912, 224935), (1140, 179948), (1520, 134961), (2280, 89974), (4560, 44987)]