126355760

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19993}}^1$

素因数の和:20085

約数の個数: 40

約数和(自身を含む): 297510720

約数和(自身を除く): 171154960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 19993, 39986, 79972, 99965, 159944, 199930, 319888, 399860, 799720, 1579447, 1599440, 3158894, 6317788, 7897235, 12635576, 15794470, 25271152, 31588940, 63177880, 126355760]

約数ペア:

[(1, 126355760), (2, 63177880), (4, 31588940), (5, 25271152), (8, 15794470), (10, 12635576), (16, 7897235), (20, 6317788), (40, 3158894), (79, 1599440), (80, 1579447), (158, 799720), (316, 399860), (395, 319888), (632, 199930), (790, 159944), (1264, 99965), (1580, 79972), (3160, 39986), (6320, 19993)]