223831760

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 533215872

約数和(自身を除く): 309384112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 157, 251, 284, 314, 355, 502, 568, 628, 710, 785, 1004, 1136, 1255, 1256, 1420, 1570, 2008, 2510, 2512, 2840, 3140, 4016, 5020, 5680, 6280, 10040, 11147, 12560, 17821, 20080, 22294, 35642, 39407, 44588, 55735, 71284, 78814, 89105, 89176, 111470, 142568, 157628, 178210, 178352, 197035, 222940, 285136, 315256, 356420, 394070, 445880, 630512, 712840, 788140, 891760, 1425680, 1576280, 2797897, 3152560, 5595794, 11191588, 13989485, 22383176, 27978970, 44766352, 55957940, 111915880, 223831760]

約数ペア:

[(1, 223831760), (2, 111915880), (4, 55957940), (5, 44766352), (8, 27978970), (10, 22383176), (16, 13989485), (20, 11191588), (40, 5595794), (71, 3152560), (80, 2797897), (142, 1576280), (157, 1425680), (251, 891760), (284, 788140), (314, 712840), (355, 630512), (502, 445880), (568, 394070), (628, 356420), (710, 315256), (785, 285136), (1004, 222940), (1136, 197035), (1255, 178352), (1256, 178210), (1420, 157628), (1570, 142568), (2008, 111470), (2510, 89176), (2512, 89105), (2840, 78814), (3140, 71284), (4016, 55735), (5020, 44588), (5680, 39407), (6280, 35642), (10040, 22294), (11147, 20080), (12560, 17821)]