20657220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{14969}}^1$

素因数の和:15004

約数の個数: 48

約数和(自身を含む): 60359040

約数和(自身を除く): 39701820

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, 14969, 29938, 44907, 59876, 74845, 89814, 149690, 179628, 224535, 299380, 344287, 449070, 688574, 898140, 1032861, 1377148, 1721435, 2065722, 3442870, 4131444, 5164305, 6885740, 10328610, 20657220]

約数ペア:

[(1, 20657220), (2, 10328610), (3, 6885740), (4, 5164305), (5, 4131444), (6, 3442870), (10, 2065722), (12, 1721435), (15, 1377148), (20, 1032861), (23, 898140), (30, 688574), (46, 449070), (60, 344287), (69, 299380), (92, 224535), (115, 179628), (138, 149690), (230, 89814), (276, 74845), (345, 59876), (460, 44907), (690, 29938), (1380, 14969)]