664567960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1061}}^1\times {\mathrm{2237}}^1$

素因数の和:3316

約数の個数: 64

約数和(自身を含む): 1711264320

約数和(自身を除く): 1046696360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1061, 2122, 2237, 4244, 4474, 5305, 7427, 8488, 8948, 10610, 11185, 14854, 15659, 17896, 21220, 22370, 29708, 31318, 37135, 42440, 44740, 59416, 62636, 74270, 78295, 89480, 125272, 148540, 156590, 297080, 313180, 626360, 2373457, 4746914, 9493828, 11867285, 16614199, 18987656, 23734570, 33228398, 47469140, 66456796, 83070995, 94938280, 132913592, 166141990, 332283980, 664567960]

約数ペア:

[(1, 664567960), (2, 332283980), (4, 166141990), (5, 132913592), (7, 94938280), (8, 83070995), (10, 66456796), (14, 47469140), (20, 33228398), (28, 23734570), (35, 18987656), (40, 16614199), (56, 11867285), (70, 9493828), (140, 4746914), (280, 2373457), (1061, 626360), (2122, 313180), (2237, 297080), (4244, 156590), (4474, 148540), (5305, 125272), (7427, 89480), (8488, 78295), (8948, 74270), (10610, 62636), (11185, 59416), (14854, 44740), (15659, 42440), (17896, 37135), (21220, 31318), (22370, 29708)]