30724120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{557}}^1$

素因数の和:772

約数の個数: 64

約数和(自身を含む): 79548480

約数和(自身を除く): 48824360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 394, 557, 788, 985, 1114, 1379, 1576, 1970, 2228, 2758, 2785, 3899, 3940, 4456, 5516, 5570, 6895, 7798, 7880, 11032, 11140, 13790, 15596, 19495, 22280, 27580, 31192, 38990, 55160, 77980, 109729, 155960, 219458, 438916, 548645, 768103, 877832, 1097290, 1536206, 2194580, 3072412, 3840515, 4389160, 6144824, 7681030, 15362060, 30724120]

約数ペア:

[(1, 30724120), (2, 15362060), (4, 7681030), (5, 6144824), (7, 4389160), (8, 3840515), (10, 3072412), (14, 2194580), (20, 1536206), (28, 1097290), (35, 877832), (40, 768103), (56, 548645), (70, 438916), (140, 219458), (197, 155960), (280, 109729), (394, 77980), (557, 55160), (788, 38990), (985, 31192), (1114, 27580), (1379, 22280), (1576, 19495), (1970, 15596), (2228, 13790), (2758, 11140), (2785, 11032), (3899, 7880), (3940, 7798), (4456, 6895), (5516, 5570)]