20807540080

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1745599}}^1$

素因数の和:1745761

約数の個数: 40

約数和(自身を含む): 48702240000

約数和(自身を除く): 27894699920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 11920, 1745599, 3491198, 6982396, 8727995, 13964792, 17455990, 27929584, 34911980, 69823960, 139647920, 260094251, 520188502, 1040377004, 1300471255, 2080754008, 2600942510, 4161508016, 5201885020, 10403770040, 20807540080]

約数ペア:

[(1, 20807540080), (2, 10403770040), (4, 5201885020), (5, 4161508016), (8, 2600942510), (10, 2080754008), (16, 1300471255), (20, 1040377004), (40, 520188502), (80, 260094251), (149, 139647920), (298, 69823960), (596, 34911980), (745, 27929584), (1192, 17455990), (1490, 13964792), (2384, 8727995), (2980, 6982396), (5960, 3491198), (11920, 1745599)]