20722016

素因数分解:

$2^5\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1171}}^1$

素因数の和:1267

約数の個数: 48

約数和(自身を含む): 47255040

約数和(自身を除く): 26533024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 79, 112, 158, 224, 316, 553, 632, 1106, 1171, 1264, 2212, 2342, 2528, 4424, 4684, 8197, 8848, 9368, 16394, 17696, 18736, 32788, 37472, 65576, 92509, 131152, 185018, 262304, 370036, 647563, 740072, 1295126, 1480144, 2590252, 2960288, 5180504, 10361008, 20722016]

約数ペア:

[(1, 20722016), (2, 10361008), (4, 5180504), (7, 2960288), (8, 2590252), (14, 1480144), (16, 1295126), (28, 740072), (32, 647563), (56, 370036), (79, 262304), (112, 185018), (158, 131152), (224, 92509), (316, 65576), (553, 37472), (632, 32788), (1106, 18736), (1171, 17696), (1264, 16394), (2212, 9368), (2342, 8848), (2528, 8197), (4424, 4684)]