81848780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7321}}^1$

素因数の和:7386

約数の個数: 48

約数和(自身を含む): 189434784

約数和(自身を除く): 107586004

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, 7321, 11180, 14642, 29284, 36605, 73210, 95173, 146420, 190346, 314803, 380692, 475865, 629606, 951730, 1259212, 1574015, 1903460, 3148030, 4092439, 6296060, 8184878, 16369756, 20462195, 40924390, 81848780]

約数ペア:

[(1, 81848780), (2, 40924390), (4, 20462195), (5, 16369756), (10, 8184878), (13, 6296060), (20, 4092439), (26, 3148030), (43, 1903460), (52, 1574015), (65, 1259212), (86, 951730), (130, 629606), (172, 475865), (215, 380692), (260, 314803), (430, 190346), (559, 146420), (860, 95173), (1118, 73210), (2236, 36605), (2795, 29284), (5590, 14642), (7321, 11180)]