138183940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3919}}^1$

素因数の和:4012

約数の個数: 48

約数和(自身を含む): 304254720

約数和(自身を除く): 166070780

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1763, 3526, 3919, 7052, 7838, 8815, 15676, 17630, 19595, 35260, 39190, 78380, 160679, 168517, 321358, 337034, 642716, 674068, 803395, 842585, 1606790, 1685170, 3213580, 3370340, 6909197, 13818394, 27636788, 34545985, 69091970, 138183940]

約数ペア:

[(1, 138183940), (2, 69091970), (4, 34545985), (5, 27636788), (10, 13818394), (20, 6909197), (41, 3370340), (43, 3213580), (82, 1685170), (86, 1606790), (164, 842585), (172, 803395), (205, 674068), (215, 642716), (410, 337034), (430, 321358), (820, 168517), (860, 160679), (1763, 78380), (3526, 39190), (3919, 35260), (7052, 19595), (7838, 17630), (8815, 15676)]