21778320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{881}}^1$

素因数の和:1000

約数の個数: 80

約数和(自身を含む): 68245632

約数和(自身を除く): 46467312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 103, 120, 206, 240, 309, 412, 515, 618, 824, 881, 1030, 1236, 1545, 1648, 1762, 2060, 2472, 2643, 3090, 3524, 4120, 4405, 4944, 5286, 6180, 7048, 8240, 8810, 10572, 12360, 13215, 14096, 17620, 21144, 24720, 26430, 35240, 42288, 52860, 70480, 90743, 105720, 181486, 211440, 272229, 362972, 453715, 544458, 725944, 907430, 1088916, 1361145, 1451888, 1814860, 2177832, 2722290, 3629720, 4355664, 5444580, 7259440, 10889160, 21778320]

約数ペア:

[(1, 21778320), (2, 10889160), (3, 7259440), (4, 5444580), (5, 4355664), (6, 3629720), (8, 2722290), (10, 2177832), (12, 1814860), (15, 1451888), (16, 1361145), (20, 1088916), (24, 907430), (30, 725944), (40, 544458), (48, 453715), (60, 362972), (80, 272229), (103, 211440), (120, 181486), (206, 105720), (240, 90743), (309, 70480), (412, 52860), (515, 42288), (618, 35240), (824, 26430), (881, 24720), (1030, 21144), (1236, 17620), (1545, 14096), (1648, 13215), (1762, 12360), (2060, 10572), (2472, 8810), (2643, 8240), (3090, 7048), (3524, 6180), (4120, 5286), (4405, 4944)]