2487940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1367}}^1$

素因数の和:1396

約数の個数: 48

約数和(自身を含む): 6435072

約数和(自身を除く): 3947132

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1367, 1820, 2734, 5468, 6835, 9569, 13670, 17771, 19138, 27340, 35542, 38276, 47845, 71084, 88855, 95690, 124397, 177710, 191380, 248794, 355420, 497588, 621985, 1243970, 2487940]

約数ペア:

[(1, 2487940), (2, 1243970), (4, 621985), (5, 497588), (7, 355420), (10, 248794), (13, 191380), (14, 177710), (20, 124397), (26, 95690), (28, 88855), (35, 71084), (52, 47845), (65, 38276), (70, 35542), (91, 27340), (130, 19138), (140, 17771), (182, 13670), (260, 9569), (364, 6835), (455, 5468), (910, 2734), (1367, 1820)]