12947740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2621}}^1$

素因数の和:2662

約数の個数: 48

約数和(自身を含む): 30834720

約数和(自身を除く): 17886980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 2621, 4940, 5242, 10484, 13105, 26210, 34073, 49799, 52420, 68146, 99598, 136292, 170365, 199196, 248995, 340730, 497990, 647387, 681460, 995980, 1294774, 2589548, 3236935, 6473870, 12947740]

約数ペア:

[(1, 12947740), (2, 6473870), (4, 3236935), (5, 2589548), (10, 1294774), (13, 995980), (19, 681460), (20, 647387), (26, 497990), (38, 340730), (52, 248995), (65, 199196), (76, 170365), (95, 136292), (130, 99598), (190, 68146), (247, 52420), (260, 49799), (380, 34073), (494, 26210), (988, 13105), (1235, 10484), (2470, 5242), (2621, 4940)]