19761520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13001}}^1$

素因数の和:13033

約数の個数: 40

約数和(自身を含む): 48367440

約数和(自身を除く): 28605920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13001, 26002, 52004, 65005, 104008, 130010, 208016, 247019, 260020, 494038, 520040, 988076, 1040080, 1235095, 1976152, 2470190, 3952304, 4940380, 9880760, 19761520]

約数ペア:

[(1, 19761520), (2, 9880760), (4, 4940380), (5, 3952304), (8, 2470190), (10, 1976152), (16, 1235095), (19, 1040080), (20, 988076), (38, 520040), (40, 494038), (76, 260020), (80, 247019), (95, 208016), (152, 130010), (190, 104008), (304, 65005), (380, 52004), (760, 26002), (1520, 13001)]