539440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{613}}^1$

素因数の和:637

約数の個数: 40

約数和(自身を含む): 1370448

約数和(自身を除く): 831008

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 613, 880, 1226, 2452, 3065, 4904, 6130, 6743, 9808, 12260, 13486, 24520, 26972, 33715, 49040, 53944, 67430, 107888, 134860, 269720, 539440]

約数ペア:

[(1, 539440), (2, 269720), (4, 134860), (5, 107888), (8, 67430), (10, 53944), (11, 49040), (16, 33715), (20, 26972), (22, 24520), (40, 13486), (44, 12260), (55, 9808), (80, 6743), (88, 6130), (110, 4904), (176, 3065), (220, 2452), (440, 1226), (613, 880)]