19650080

素因数分解:

$2^5\times 5^1\times {\mathrm{191}}^1\times {\mathrm{643}}^1$

素因数の和:849

約数の個数: 48

約数和(自身を含む): 46738944

約数和(自身を除く): 27088864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 191, 382, 643, 764, 955, 1286, 1528, 1910, 2572, 3056, 3215, 3820, 5144, 6112, 6430, 7640, 10288, 12860, 15280, 20576, 25720, 30560, 51440, 102880, 122813, 245626, 491252, 614065, 982504, 1228130, 1965008, 2456260, 3930016, 4912520, 9825040, 19650080]

約数ペア:

[(1, 19650080), (2, 9825040), (4, 4912520), (5, 3930016), (8, 2456260), (10, 1965008), (16, 1228130), (20, 982504), (32, 614065), (40, 491252), (80, 245626), (160, 122813), (191, 102880), (382, 51440), (643, 30560), (764, 25720), (955, 20576), (1286, 15280), (1528, 12860), (1910, 10288), (2572, 7640), (3056, 6430), (3215, 6112), (3820, 5144)]