2556880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1075

約数の個数: 40

約数和(自身を含む): 6142464

約数和(自身を除く): 3585584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1031, 1240, 2062, 2480, 4124, 5155, 8248, 10310, 16496, 20620, 31961, 41240, 63922, 82480, 127844, 159805, 255688, 319610, 511376, 639220, 1278440, 2556880]

約数ペア:

[(1, 2556880), (2, 1278440), (4, 639220), (5, 511376), (8, 319610), (10, 255688), (16, 159805), (20, 127844), (31, 82480), (40, 63922), (62, 41240), (80, 31961), (124, 20620), (155, 16496), (248, 10310), (310, 8248), (496, 5155), (620, 4124), (1031, 2480), (1240, 2062)]