4952560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2041

約数の個数: 40

約数和(自身を含む): 11892096

約数和(自身を除く): 6939536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 1997, 2480, 3994, 7988, 9985, 15976, 19970, 31952, 39940, 61907, 79880, 123814, 159760, 247628, 309535, 495256, 619070, 990512, 1238140, 2476280, 4952560]

約数ペア:

[(1, 4952560), (2, 2476280), (4, 1238140), (5, 990512), (8, 619070), (10, 495256), (16, 309535), (20, 247628), (31, 159760), (40, 123814), (62, 79880), (80, 61907), (124, 39940), (155, 31952), (248, 19970), (310, 15976), (496, 9985), (620, 7988), (1240, 3994), (1997, 2480)]