2657320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2143}}^1$

素因数の和:2185

約数の個数: 32

約数和(自身を含む): 6174720

約数和(自身を除く): 3517400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 2143, 4286, 8572, 10715, 17144, 21430, 42860, 66433, 85720, 132866, 265732, 332165, 531464, 664330, 1328660, 2657320]

約数ペア:

[(1, 2657320), (2, 1328660), (4, 664330), (5, 531464), (8, 332165), (10, 265732), (20, 132866), (31, 85720), (40, 66433), (62, 42860), (124, 21430), (155, 17144), (248, 10715), (310, 8572), (620, 4286), (1240, 2143)]