51720320

素因数分解:

$2^7\times 5^1\times {\mathrm{211}}^1\times {\mathrm{383}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 124554240

約数和(自身を除く): 72833920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 320, 383, 422, 640, 766, 844, 1055, 1532, 1688, 1915, 2110, 3064, 3376, 3830, 4220, 6128, 6752, 7660, 8440, 12256, 13504, 15320, 16880, 24512, 27008, 30640, 33760, 49024, 61280, 67520, 80813, 122560, 135040, 161626, 245120, 323252, 404065, 646504, 808130, 1293008, 1616260, 2586016, 3232520, 5172032, 6465040, 10344064, 12930080, 25860160, 51720320]

約数ペア:

[(1, 51720320), (2, 25860160), (4, 12930080), (5, 10344064), (8, 6465040), (10, 5172032), (16, 3232520), (20, 2586016), (32, 1616260), (40, 1293008), (64, 808130), (80, 646504), (128, 404065), (160, 323252), (211, 245120), (320, 161626), (383, 135040), (422, 122560), (640, 80813), (766, 67520), (844, 61280), (1055, 49024), (1532, 33760), (1688, 30640), (1915, 27008), (2110, 24512), (3064, 16880), (3376, 15320), (3830, 13504), (4220, 12256), (6128, 8440), (6752, 7660)]