20806560

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14449}}^1$

素因数の和:14470

約数の個数: 72

約数和(自身を含む): 71007300

約数和(自身を除く): 50200740

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, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14449, 28898, 43347, 57796, 72245, 86694, 115592, 130041, 144490, 173388, 216735, 231184, 260082, 288980, 346776, 433470, 462368, 520164, 577960, 650205, 693552, 866940, 1040328, 1155920, 1300410, 1387104, 1733880, 2080656, 2311840, 2600820, 3467760, 4161312, 5201640, 6935520, 10403280, 20806560]

約数ペア:

[(1, 20806560), (2, 10403280), (3, 6935520), (4, 5201640), (5, 4161312), (6, 3467760), (8, 2600820), (9, 2311840), (10, 2080656), (12, 1733880), (15, 1387104), (16, 1300410), (18, 1155920), (20, 1040328), (24, 866940), (30, 693552), (32, 650205), (36, 577960), (40, 520164), (45, 462368), (48, 433470), (60, 346776), (72, 288980), (80, 260082), (90, 231184), (96, 216735), (120, 173388), (144, 144490), (160, 130041), (180, 115592), (240, 86694), (288, 72245), (360, 57796), (480, 43347), (720, 28898), (1440, 14449)]