20047920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{811}}^1$

素因数の和:930

約数の個数: 80

約数和(自身を含む): 62829312

約数和(自身を除く): 42781392

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, 811, 824, 1030, 1236, 1545, 1622, 1648, 2060, 2433, 2472, 3090, 3244, 4055, 4120, 4866, 4944, 6180, 6488, 8110, 8240, 9732, 12165, 12360, 12976, 16220, 19464, 24330, 24720, 32440, 38928, 48660, 64880, 83533, 97320, 167066, 194640, 250599, 334132, 417665, 501198, 668264, 835330, 1002396, 1252995, 1336528, 1670660, 2004792, 2505990, 3341320, 4009584, 5011980, 6682640, 10023960, 20047920]

約数ペア:

[(1, 20047920), (2, 10023960), (3, 6682640), (4, 5011980), (5, 4009584), (6, 3341320), (8, 2505990), (10, 2004792), (12, 1670660), (15, 1336528), (16, 1252995), (20, 1002396), (24, 835330), (30, 668264), (40, 501198), (48, 417665), (60, 334132), (80, 250599), (103, 194640), (120, 167066), (206, 97320), (240, 83533), (309, 64880), (412, 48660), (515, 38928), (618, 32440), (811, 24720), (824, 24330), (1030, 19464), (1236, 16220), (1545, 12976), (1622, 12360), (1648, 12165), (2060, 9732), (2433, 8240), (2472, 8110), (3090, 6488), (3244, 6180), (4055, 4944), (4120, 4866)]