40099760

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1997}}^1$

素因数の和:2261

約数の個数: 40

約数和(自身を含む): 93650256

約数和(自身を除く): 53550496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 1997, 2008, 2510, 3994, 4016, 5020, 7988, 9985, 10040, 15976, 19970, 20080, 31952, 39940, 79880, 159760, 501247, 1002494, 2004988, 2506235, 4009976, 5012470, 8019952, 10024940, 20049880, 40099760]

約数ペア:

[(1, 40099760), (2, 20049880), (4, 10024940), (5, 8019952), (8, 5012470), (10, 4009976), (16, 2506235), (20, 2004988), (40, 1002494), (80, 501247), (251, 159760), (502, 79880), (1004, 39940), (1255, 31952), (1997, 20080), (2008, 19970), (2510, 15976), (3994, 10040), (4016, 9985), (5020, 7988)]