2009258420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{179719}}^1$

素因数の和:179784

約数の個数: 48

約数和(自身を含む): 4649715840

約数和(自身を除く): 2640457420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 179719, 359438, 718876, 898595, 1797190, 2336347, 3594380, 4672694, 7727917, 9345388, 11681735, 15455834, 23363470, 30911668, 38639585, 46726940, 77279170, 100462921, 154558340, 200925842, 401851684, 502314605, 1004629210, 2009258420]

約数ペア:

[(1, 2009258420), (2, 1004629210), (4, 502314605), (5, 401851684), (10, 200925842), (13, 154558340), (20, 100462921), (26, 77279170), (43, 46726940), (52, 38639585), (65, 30911668), (86, 23363470), (130, 15455834), (172, 11681735), (215, 9345388), (260, 7727917), (430, 4672694), (559, 3594380), (860, 2336347), (1118, 1797190), (2236, 898595), (2795, 718876), (5590, 359438), (11180, 179719)]