20819520

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{7229}}^1$

素因数の和:7252

約数の個数: 84

約数和(自身を含む): 71620380

約数和(自身を除く): 50800860

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 7229, 14458, 21687, 28916, 36145, 43374, 57832, 65061, 72290, 86748, 108435, 115664, 130122, 144580, 173496, 216870, 231328, 260244, 289160, 325305, 346992, 433740, 462656, 520488, 578320, 650610, 693984, 867480, 1040976, 1156640, 1301220, 1387968, 1734960, 2081952, 2313280, 2602440, 3469920, 4163904, 5204880, 6939840, 10409760, 20819520]

約数ペア:

[(1, 20819520), (2, 10409760), (3, 6939840), (4, 5204880), (5, 4163904), (6, 3469920), (8, 2602440), (9, 2313280), (10, 2081952), (12, 1734960), (15, 1387968), (16, 1301220), (18, 1156640), (20, 1040976), (24, 867480), (30, 693984), (32, 650610), (36, 578320), (40, 520488), (45, 462656), (48, 433740), (60, 346992), (64, 325305), (72, 289160), (80, 260244), (90, 231328), (96, 216870), (120, 173496), (144, 144580), (160, 130122), (180, 115664), (192, 108435), (240, 86748), (288, 72290), (320, 65061), (360, 57832), (480, 43374), (576, 36145), (720, 28916), (960, 21687), (1440, 14458), (2880, 7229)]