20938740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15173}}^1$

素因数の和:15208

約数の個数: 48

約数和(自身を含む): 61181568

約数和(自身を除く): 40242828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15173, 30346, 45519, 60692, 75865, 91038, 151730, 182076, 227595, 303460, 348979, 455190, 697958, 910380, 1046937, 1395916, 1744895, 2093874, 3489790, 4187748, 5234685, 6979580, 10469370, 20938740]

約数ペア:

[(1, 20938740), (2, 10469370), (3, 6979580), (4, 5234685), (5, 4187748), (6, 3489790), (10, 2093874), (12, 1744895), (15, 1395916), (20, 1046937), (23, 910380), (30, 697958), (46, 455190), (60, 348979), (69, 303460), (92, 227595), (115, 182076), (138, 151730), (230, 91038), (276, 75865), (345, 60692), (460, 45519), (690, 30346), (1380, 15173)]