51977440

素因数分解:

$2^5\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1993}}^1$

素因数の和:2171

約数の個数: 48

約数和(自身を含む): 123612048

約数和(自身を除く): 71634608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 163, 326, 652, 815, 1304, 1630, 1993, 2608, 3260, 3986, 5216, 6520, 7972, 9965, 13040, 15944, 19930, 26080, 31888, 39860, 63776, 79720, 159440, 318880, 324859, 649718, 1299436, 1624295, 2598872, 3248590, 5197744, 6497180, 10395488, 12994360, 25988720, 51977440]

約数ペア:

[(1, 51977440), (2, 25988720), (4, 12994360), (5, 10395488), (8, 6497180), (10, 5197744), (16, 3248590), (20, 2598872), (32, 1624295), (40, 1299436), (80, 649718), (160, 324859), (163, 318880), (326, 159440), (652, 79720), (815, 63776), (1304, 39860), (1630, 31888), (1993, 26080), (2608, 19930), (3260, 15944), (3986, 13040), (5216, 9965), (6520, 7972)]