551440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:187

約数の個数: 40

約数和(自身を含む): 1314648

約数和(自身を除く): 763208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 113, 122, 226, 244, 305, 452, 488, 565, 610, 904, 976, 1130, 1220, 1808, 2260, 2440, 4520, 4880, 6893, 9040, 13786, 27572, 34465, 55144, 68930, 110288, 137860, 275720, 551440]

約数ペア:

[(1, 551440), (2, 275720), (4, 137860), (5, 110288), (8, 68930), (10, 55144), (16, 34465), (20, 27572), (40, 13786), (61, 9040), (80, 6893), (113, 4880), (122, 4520), (226, 2440), (244, 2260), (305, 1808), (452, 1220), (488, 1130), (565, 976), (610, 904)]