21854640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2221}}^1$

素因数の和:2278

約数の個数: 80

約数和(自身を含む): 69433056

約数和(自身を除く): 47578416

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, 2221, 2460, 3280, 4442, 4920, 6663, 8884, 9840, 11105, 13326, 17768, 22210, 26652, 33315, 35536, 44420, 53304, 66630, 88840, 91061, 106608, 133260, 177680, 182122, 266520, 273183, 364244, 455305, 533040, 546366, 728488, 910610, 1092732, 1365915, 1456976, 1821220, 2185464, 2731830, 3642440, 4370928, 5463660, 7284880, 10927320, 21854640]

約数ペア:

[(1, 21854640), (2, 10927320), (3, 7284880), (4, 5463660), (5, 4370928), (6, 3642440), (8, 2731830), (10, 2185464), (12, 1821220), (15, 1456976), (16, 1365915), (20, 1092732), (24, 910610), (30, 728488), (40, 546366), (41, 533040), (48, 455305), (60, 364244), (80, 273183), (82, 266520), (120, 182122), (123, 177680), (164, 133260), (205, 106608), (240, 91061), (246, 88840), (328, 66630), (410, 53304), (492, 44420), (615, 35536), (656, 33315), (820, 26652), (984, 22210), (1230, 17768), (1640, 13326), (1968, 11105), (2221, 9840), (2460, 8884), (3280, 6663), (4442, 4920)]