42718780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3821}}^1$

素因数の和:3886

約数の個数: 48

約数和(自身を含む): 98882784

約数和(自身を除く): 56164004

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, 3821, 5590, 7642, 11180, 15284, 19105, 38210, 49673, 76420, 99346, 164303, 198692, 248365, 328606, 496730, 657212, 821515, 993460, 1643030, 2135939, 3286060, 4271878, 8543756, 10679695, 21359390, 42718780]

約数ペア:

[(1, 42718780), (2, 21359390), (4, 10679695), (5, 8543756), (10, 4271878), (13, 3286060), (20, 2135939), (26, 1643030), (43, 993460), (52, 821515), (65, 657212), (86, 496730), (130, 328606), (172, 248365), (215, 198692), (260, 164303), (430, 99346), (559, 76420), (860, 49673), (1118, 38210), (2236, 19105), (2795, 15284), (3821, 11180), (5590, 7642)]