21677520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2203}}^1$

素因数の和:2260

約数の個数: 80

約数和(自身を含む): 68870592

約数和(自身を除く): 47193072

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2203, 2460, 3280, 4406, 4920, 6609, 8812, 9840, 11015, 13218, 17624, 22030, 26436, 33045, 35248, 44060, 52872, 66090, 88120, 90323, 105744, 132180, 176240, 180646, 264360, 270969, 361292, 451615, 528720, 541938, 722584, 903230, 1083876, 1354845, 1445168, 1806460, 2167752, 2709690, 3612920, 4335504, 5419380, 7225840, 10838760, 21677520]

約数ペア:

[(1, 21677520), (2, 10838760), (3, 7225840), (4, 5419380), (5, 4335504), (6, 3612920), (8, 2709690), (10, 2167752), (12, 1806460), (15, 1445168), (16, 1354845), (20, 1083876), (24, 903230), (30, 722584), (40, 541938), (41, 528720), (48, 451615), (60, 361292), (80, 270969), (82, 264360), (120, 180646), (123, 176240), (164, 132180), (205, 105744), (240, 90323), (246, 88120), (328, 66090), (410, 52872), (492, 44060), (615, 35248), (656, 33045), (820, 26436), (984, 22030), (1230, 17624), (1640, 13218), (1968, 11015), (2203, 9840), (2460, 8812), (3280, 6609), (4406, 4920)]