401191520

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{15971}}^1$

素因数の和:16143

約数の個数: 48

約数和(自身を含む): 953911728

約数和(自身を除く): 552720208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 628, 785, 1256, 1570, 2512, 3140, 5024, 6280, 12560, 15971, 25120, 31942, 63884, 79855, 127768, 159710, 255536, 319420, 511072, 638840, 1277680, 2507447, 2555360, 5014894, 10029788, 12537235, 20059576, 25074470, 40119152, 50148940, 80238304, 100297880, 200595760, 401191520]

約数ペア:

[(1, 401191520), (2, 200595760), (4, 100297880), (5, 80238304), (8, 50148940), (10, 40119152), (16, 25074470), (20, 20059576), (32, 12537235), (40, 10029788), (80, 5014894), (157, 2555360), (160, 2507447), (314, 1277680), (628, 638840), (785, 511072), (1256, 319420), (1570, 255536), (2512, 159710), (3140, 127768), (5024, 79855), (6280, 63884), (12560, 31942), (15971, 25120)]