20664120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7487}}^1$

素因数の和:7524

約数の個数: 64

約数和(自身を含む): 64696320

約数和(自身を除く): 44032200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7487, 14974, 22461, 29948, 37435, 44922, 59896, 74870, 89844, 112305, 149740, 172201, 179688, 224610, 299480, 344402, 449220, 516603, 688804, 861005, 898440, 1033206, 1377608, 1722010, 2066412, 2583015, 3444020, 4132824, 5166030, 6888040, 10332060, 20664120]

約数ペア:

[(1, 20664120), (2, 10332060), (3, 6888040), (4, 5166030), (5, 4132824), (6, 3444020), (8, 2583015), (10, 2066412), (12, 1722010), (15, 1377608), (20, 1033206), (23, 898440), (24, 861005), (30, 688804), (40, 516603), (46, 449220), (60, 344402), (69, 299480), (92, 224610), (115, 179688), (120, 172201), (138, 149740), (184, 112305), (230, 89844), (276, 74870), (345, 59896), (460, 44922), (552, 37435), (690, 29948), (920, 22461), (1380, 14974), (2760, 7487)]