20840448

素因数分解:

$2^{17}\times 3^1\times {\mathrm{53}}^1$

素因数の和:90

約数の個数: 72

約数和(自身を含む): 56622888

約数和(自身を除く): 35782440

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 53, 64, 96, 106, 128, 159, 192, 212, 256, 318, 384, 424, 512, 636, 768, 848, 1024, 1272, 1536, 1696, 2048, 2544, 3072, 3392, 4096, 5088, 6144, 6784, 8192, 10176, 12288, 13568, 16384, 20352, 24576, 27136, 32768, 40704, 49152, 54272, 65536, 81408, 98304, 108544, 131072, 162816, 196608, 217088, 325632, 393216, 434176, 651264, 868352, 1302528, 1736704, 2605056, 3473408, 5210112, 6946816, 10420224, 20840448]

約数ペア:

[(1, 20840448), (2, 10420224), (3, 6946816), (4, 5210112), (6, 3473408), (8, 2605056), (12, 1736704), (16, 1302528), (24, 868352), (32, 651264), (48, 434176), (53, 393216), (64, 325632), (96, 217088), (106, 196608), (128, 162816), (159, 131072), (192, 108544), (212, 98304), (256, 81408), (318, 65536), (384, 54272), (424, 49152), (512, 40704), (636, 32768), (768, 27136), (848, 24576), (1024, 20352), (1272, 16384), (1536, 13568), (1696, 12288), (2048, 10176), (2544, 8192), (3072, 6784), (3392, 6144), (4096, 5088)]