78944720

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{5113}}^1$

素因数の和:5319

約数の個数: 40

約数和(自身を含む): 184533576

約数和(自身を除く): 105588856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 5113, 7720, 10226, 15440, 20452, 25565, 40904, 51130, 81808, 102260, 204520, 409040, 986809, 1973618, 3947236, 4934045, 7894472, 9868090, 15788944, 19736180, 39472360, 78944720]

約数ペア:

[(1, 78944720), (2, 39472360), (4, 19736180), (5, 15788944), (8, 9868090), (10, 7894472), (16, 4934045), (20, 3947236), (40, 1973618), (80, 986809), (193, 409040), (386, 204520), (772, 102260), (965, 81808), (1544, 51130), (1930, 40904), (3088, 25565), (3860, 20452), (5113, 15440), (7720, 10226)]