25191520

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1993}}^1$

素因数の和:2087

約数の個数: 48

約数和(自身を含む): 60298560

約数和(自身を除く): 35107040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1580, 1993, 2528, 3160, 3986, 6320, 7972, 9965, 12640, 15944, 19930, 31888, 39860, 63776, 79720, 157447, 159440, 314894, 318880, 629788, 787235, 1259576, 1574470, 2519152, 3148940, 5038304, 6297880, 12595760, 25191520]

約数ペア:

[(1, 25191520), (2, 12595760), (4, 6297880), (5, 5038304), (8, 3148940), (10, 2519152), (16, 1574470), (20, 1259576), (32, 787235), (40, 629788), (79, 318880), (80, 314894), (158, 159440), (160, 157447), (316, 79720), (395, 63776), (632, 39860), (790, 31888), (1264, 19930), (1580, 15944), (1993, 12640), (2528, 9965), (3160, 7972), (3986, 6320)]