20317120

素因数分解:

$2^6\times 5^1\times {\mathrm{173}}^1\times {\mathrm{367}}^1$

素因数の和:557

約数の個数: 56

約数和(自身を含む): 48792384

約数和(自身を除く): 28475264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 173, 320, 346, 367, 692, 734, 865, 1384, 1468, 1730, 1835, 2768, 2936, 3460, 3670, 5536, 5872, 6920, 7340, 11072, 11744, 13840, 14680, 23488, 27680, 29360, 55360, 58720, 63491, 117440, 126982, 253964, 317455, 507928, 634910, 1015856, 1269820, 2031712, 2539640, 4063424, 5079280, 10158560, 20317120]

約数ペア:

[(1, 20317120), (2, 10158560), (4, 5079280), (5, 4063424), (8, 2539640), (10, 2031712), (16, 1269820), (20, 1015856), (32, 634910), (40, 507928), (64, 317455), (80, 253964), (160, 126982), (173, 117440), (320, 63491), (346, 58720), (367, 55360), (692, 29360), (734, 27680), (865, 23488), (1384, 14680), (1468, 13840), (1730, 11744), (1835, 11072), (2768, 7340), (2936, 6920), (3460, 5872), (3670, 5536)]