20513520

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9497}}^1$

素因数の和:9519

約数の個数: 80

約数和(自身を含む): 70665120

約数和(自身を除く): 50151600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9497, 18994, 28491, 37988, 47485, 56982, 75976, 85473, 94970, 113964, 142455, 151952, 170946, 189940, 227928, 256419, 284910, 341892, 379880, 427365, 455856, 512838, 569820, 683784, 759760, 854730, 1025676, 1139640, 1282095, 1367568, 1709460, 2051352, 2279280, 2564190, 3418920, 4102704, 5128380, 6837840, 10256760, 20513520]

約数ペア:

[(1, 20513520), (2, 10256760), (3, 6837840), (4, 5128380), (5, 4102704), (6, 3418920), (8, 2564190), (9, 2279280), (10, 2051352), (12, 1709460), (15, 1367568), (16, 1282095), (18, 1139640), (20, 1025676), (24, 854730), (27, 759760), (30, 683784), (36, 569820), (40, 512838), (45, 455856), (48, 427365), (54, 379880), (60, 341892), (72, 284910), (80, 256419), (90, 227928), (108, 189940), (120, 170946), (135, 151952), (144, 142455), (180, 113964), (216, 94970), (240, 85473), (270, 75976), (360, 56982), (432, 47485), (540, 37988), (720, 28491), (1080, 18994), (2160, 9497)]