81604832

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:643

約数の個数: 48

約数和(自身を含む): 166430880

約数和(自身を除く): 84826048

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 148, 157, 296, 314, 439, 592, 628, 878, 1184, 1256, 1756, 2512, 3512, 5024, 5809, 7024, 11618, 14048, 16243, 23236, 32486, 46472, 64972, 68923, 92944, 129944, 137846, 185888, 259888, 275692, 519776, 551384, 1102768, 2205536, 2550151, 5100302, 10200604, 20401208, 40802416, 81604832]

約数ペア:

[(1, 81604832), (2, 40802416), (4, 20401208), (8, 10200604), (16, 5100302), (32, 2550151), (37, 2205536), (74, 1102768), (148, 551384), (157, 519776), (296, 275692), (314, 259888), (439, 185888), (592, 137846), (628, 129944), (878, 92944), (1184, 68923), (1256, 64972), (1756, 46472), (2512, 32486), (3512, 23236), (5024, 16243), (5809, 14048), (7024, 11618)]