51320040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{661}}^1$

素因数の和:1322

約数の個数: 64

約数和(自身を含む): 154431360

約数和(自身を除く): 103111320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 647, 661, 1294, 1322, 1941, 1983, 2588, 2644, 3235, 3305, 3882, 3966, 5176, 5288, 6470, 6610, 7764, 7932, 9705, 9915, 12940, 13220, 15528, 15864, 19410, 19830, 25880, 26440, 38820, 39660, 77640, 79320, 427667, 855334, 1283001, 1710668, 2138335, 2566002, 3421336, 4276670, 5132004, 6415005, 8553340, 10264008, 12830010, 17106680, 25660020, 51320040]

約数ペア:

[(1, 51320040), (2, 25660020), (3, 17106680), (4, 12830010), (5, 10264008), (6, 8553340), (8, 6415005), (10, 5132004), (12, 4276670), (15, 3421336), (20, 2566002), (24, 2138335), (30, 1710668), (40, 1283001), (60, 855334), (120, 427667), (647, 79320), (661, 77640), (1294, 39660), (1322, 38820), (1941, 26440), (1983, 25880), (2588, 19830), (2644, 19410), (3235, 15864), (3305, 15528), (3882, 13220), (3966, 12940), (5176, 9915), (5288, 9705), (6470, 7932), (6610, 7764)]