20298750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{5413}}^1$

素因数の和:5438

約数の個数: 40

約数和(自身を含む): 50740008

約数和(自身を除く): 30441258

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 250, 375, 625, 750, 1250, 1875, 3750, 5413, 10826, 16239, 27065, 32478, 54130, 81195, 135325, 162390, 270650, 405975, 676625, 811950, 1353250, 2029875, 3383125, 4059750, 6766250, 10149375, 20298750]

約数ペア:

[(1, 20298750), (2, 10149375), (3, 6766250), (5, 4059750), (6, 3383125), (10, 2029875), (15, 1353250), (25, 811950), (30, 676625), (50, 405975), (75, 270650), (125, 162390), (150, 135325), (250, 81195), (375, 54130), (625, 32478), (750, 27065), (1250, 16239), (1875, 10826), (3750, 5413)]