488777320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1\times {\mathrm{547}}^1$

素因数の和:898

約数の個数: 64

約数和(自身を含む): 1118577600

約数和(自身を除く): 629800280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 251, 356, 445, 502, 547, 712, 890, 1004, 1094, 1255, 1780, 2008, 2188, 2510, 2735, 3560, 4376, 5020, 5470, 10040, 10940, 21880, 22339, 44678, 48683, 89356, 97366, 111695, 137297, 178712, 194732, 223390, 243415, 274594, 389464, 446780, 486830, 549188, 686485, 893560, 973660, 1098376, 1372970, 1947320, 2745940, 5491880, 12219433, 24438866, 48877732, 61097165, 97755464, 122194330, 244388660, 488777320]

約数ペア:

[(1, 488777320), (2, 244388660), (4, 122194330), (5, 97755464), (8, 61097165), (10, 48877732), (20, 24438866), (40, 12219433), (89, 5491880), (178, 2745940), (251, 1947320), (356, 1372970), (445, 1098376), (502, 973660), (547, 893560), (712, 686485), (890, 549188), (1004, 486830), (1094, 446780), (1255, 389464), (1780, 274594), (2008, 243415), (2188, 223390), (2510, 194732), (2735, 178712), (3560, 137297), (4376, 111695), (5020, 97366), (5470, 89356), (10040, 48683), (10940, 44678), (21880, 22339)]