408889772920

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{40726073}}^1$

素因数の和:40726335

約数の個数: 32

約数和(自身を含む): 923667358320

約数和(自身を除く): 514777585400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 40726073, 81452146, 162904292, 203630365, 325808584, 407260730, 814521460, 1629042920, 10222244323, 20444488646, 40888977292, 51111221615, 81777954584, 102222443230, 204444886460, 408889772920]

約数ペア:

[(1, 408889772920), (2, 204444886460), (4, 102222443230), (5, 81777954584), (8, 51111221615), (10, 40888977292), (20, 20444488646), (40, 10222244323), (251, 1629042920), (502, 814521460), (1004, 407260730), (1255, 325808584), (2008, 203630365), (2510, 162904292), (5020, 81452146), (10040, 40726073)]