20485160

素因数分解:

$2^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{1373}}^1$

素因数の和:1757

約数の個数: 32

約数和(自身を含む): 46248840

約数和(自身を除く): 25763680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 373, 746, 1373, 1492, 1865, 2746, 2984, 3730, 5492, 6865, 7460, 10984, 13730, 14920, 27460, 54920, 512129, 1024258, 2048516, 2560645, 4097032, 5121290, 10242580, 20485160]

約数ペア:

[(1, 20485160), (2, 10242580), (4, 5121290), (5, 4097032), (8, 2560645), (10, 2048516), (20, 1024258), (40, 512129), (373, 54920), (746, 27460), (1373, 14920), (1492, 13730), (1865, 10984), (2746, 7460), (2984, 6865), (3730, 5492)]