1338896

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 40

約数和(自身を含む): 2880024

約数和(自身を除く): 1541128

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 157, 164, 208, 314, 328, 533, 628, 656, 1066, 1256, 2041, 2132, 2512, 4082, 4264, 6437, 8164, 8528, 12874, 16328, 25748, 32656, 51496, 83681, 102992, 167362, 334724, 669448, 1338896]

約数ペア:

[(1, 1338896), (2, 669448), (4, 334724), (8, 167362), (13, 102992), (16, 83681), (26, 51496), (41, 32656), (52, 25748), (82, 16328), (104, 12874), (157, 8528), (164, 8164), (208, 6437), (314, 4264), (328, 4082), (533, 2512), (628, 2132), (656, 2041), (1066, 1256)]