11919440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 30445968

約数和(自身を除く): 18526528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 73, 80, 104, 130, 146, 157, 208, 260, 292, 314, 365, 520, 584, 628, 730, 785, 949, 1040, 1168, 1256, 1460, 1570, 1898, 2041, 2512, 2920, 3140, 3796, 4082, 4745, 5840, 6280, 7592, 8164, 9490, 10205, 11461, 12560, 15184, 16328, 18980, 20410, 22922, 32656, 37960, 40820, 45844, 57305, 75920, 81640, 91688, 114610, 148993, 163280, 183376, 229220, 297986, 458440, 595972, 744965, 916880, 1191944, 1489930, 2383888, 2979860, 5959720, 11919440]

約数ペア:

[(1, 11919440), (2, 5959720), (4, 2979860), (5, 2383888), (8, 1489930), (10, 1191944), (13, 916880), (16, 744965), (20, 595972), (26, 458440), (40, 297986), (52, 229220), (65, 183376), (73, 163280), (80, 148993), (104, 114610), (130, 91688), (146, 81640), (157, 75920), (208, 57305), (260, 45844), (292, 40820), (314, 37960), (365, 32656), (520, 22922), (584, 20410), (628, 18980), (730, 16328), (785, 15184), (949, 12560), (1040, 11461), (1168, 10205), (1256, 9490), (1460, 8164), (1570, 7592), (1898, 6280), (2041, 5840), (2512, 4745), (2920, 4082), (3140, 3796)]