1278440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1073

約数の個数: 32

約数和(自身を含む): 2972160

約数和(自身を除く): 1693720

約数列:

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

約数ペア:

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