20338440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7369}}^1$

素因数の和:7406

約数の個数: 64

約数和(自身を含む): 63676800

約数和(自身を除く): 43338360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7369, 14738, 22107, 29476, 36845, 44214, 58952, 73690, 88428, 110535, 147380, 169487, 176856, 221070, 294760, 338974, 442140, 508461, 677948, 847435, 884280, 1016922, 1355896, 1694870, 2033844, 2542305, 3389740, 4067688, 5084610, 6779480, 10169220, 20338440]

約数ペア:

[(1, 20338440), (2, 10169220), (3, 6779480), (4, 5084610), (5, 4067688), (6, 3389740), (8, 2542305), (10, 2033844), (12, 1694870), (15, 1355896), (20, 1016922), (23, 884280), (24, 847435), (30, 677948), (40, 508461), (46, 442140), (60, 338974), (69, 294760), (92, 221070), (115, 176856), (120, 169487), (138, 147380), (184, 110535), (230, 88428), (276, 73690), (345, 58952), (460, 44214), (552, 36845), (690, 29476), (920, 22107), (1380, 14738), (2760, 7369)]