25307920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28759}}^1$

素因数の和:28783

約数の個数: 40

約数和(自身を含む): 64192320

約数和(自身を除く): 38884400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 28759, 57518, 115036, 143795, 230072, 287590, 316349, 460144, 575180, 632698, 1150360, 1265396, 1581745, 2300720, 2530792, 3163490, 5061584, 6326980, 12653960, 25307920]

約数ペア:

[(1, 25307920), (2, 12653960), (4, 6326980), (5, 5061584), (8, 3163490), (10, 2530792), (11, 2300720), (16, 1581745), (20, 1265396), (22, 1150360), (40, 632698), (44, 575180), (55, 460144), (80, 316349), (88, 287590), (110, 230072), (176, 143795), (220, 115036), (440, 57518), (880, 28759)]