78004720

素因数分解:

$2^4\times 5^1\times {\mathrm{919}}^1\times {\mathrm{1061}}^1$

素因数の和:1993

約数の個数: 40

約数和(自身を含む): 181729440

約数和(自身を除く): 103724720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 919, 1061, 1838, 2122, 3676, 4244, 4595, 5305, 7352, 8488, 9190, 10610, 14704, 16976, 18380, 21220, 36760, 42440, 73520, 84880, 975059, 1950118, 3900236, 4875295, 7800472, 9750590, 15600944, 19501180, 39002360, 78004720]

約数ペア:

[(1, 78004720), (2, 39002360), (4, 19501180), (5, 15600944), (8, 9750590), (10, 7800472), (16, 4875295), (20, 3900236), (40, 1950118), (80, 975059), (919, 84880), (1061, 73520), (1838, 42440), (2122, 36760), (3676, 21220), (4244, 18380), (4595, 16976), (5305, 14704), (7352, 10610), (8488, 9190)]