72408080

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{3221}}^1$

素因数の和:3515

約数の個数: 40

約数和(自身を含む): 169000344

約数和(自身を除く): 96592264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1405, 2248, 2810, 3221, 4496, 5620, 6442, 11240, 12884, 16105, 22480, 25768, 32210, 51536, 64420, 128840, 257680, 905101, 1810202, 3620404, 4525505, 7240808, 9051010, 14481616, 18102020, 36204040, 72408080]

約数ペア:

[(1, 72408080), (2, 36204040), (4, 18102020), (5, 14481616), (8, 9051010), (10, 7240808), (16, 4525505), (20, 3620404), (40, 1810202), (80, 905101), (281, 257680), (562, 128840), (1124, 64420), (1405, 51536), (2248, 32210), (2810, 25768), (3221, 22480), (4496, 16105), (5620, 12884), (6442, 11240)]