78798520

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{6961}}^1$

素因数の和:7255

約数の個数: 32

約数和(自身を含む): 177948720

約数和(自身を除く): 99150200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 6961, 11320, 13922, 27844, 34805, 55688, 69610, 139220, 278440, 1969963, 3939926, 7879852, 9849815, 15759704, 19699630, 39399260, 78798520]

約数ペア:

[(1, 78798520), (2, 39399260), (4, 19699630), (5, 15759704), (8, 9849815), (10, 7879852), (20, 3939926), (40, 1969963), (283, 278440), (566, 139220), (1132, 69610), (1415, 55688), (2264, 34805), (2830, 27844), (5660, 13922), (6961, 11320)]