51085520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20599}}^1$

素因数の和:20643

約数の個数: 40

約数和(自身を含む): 122611200

約数和(自身を除く): 71525680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 20599, 41198, 82396, 102995, 164792, 205990, 329584, 411980, 638569, 823960, 1277138, 1647920, 2554276, 3192845, 5108552, 6385690, 10217104, 12771380, 25542760, 51085520]

約数ペア:

[(1, 51085520), (2, 25542760), (4, 12771380), (5, 10217104), (8, 6385690), (10, 5108552), (16, 3192845), (20, 2554276), (31, 1647920), (40, 1277138), (62, 823960), (80, 638569), (124, 411980), (155, 329584), (248, 205990), (310, 164792), (496, 102995), (620, 82396), (1240, 41198), (2480, 20599)]