77679940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2741}}^1$

素因数の和:2872

約数の個数: 48

約数和(自身を含む): 177352560

約数和(自身を除く): 99672620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2741, 2834, 5482, 5668, 7085, 10964, 13705, 14170, 27410, 28340, 35633, 54820, 71266, 142532, 178165, 298769, 356330, 597538, 712660, 1195076, 1493845, 2987690, 3883997, 5975380, 7767994, 15535988, 19419985, 38839970, 77679940]

約数ペア:

[(1, 77679940), (2, 38839970), (4, 19419985), (5, 15535988), (10, 7767994), (13, 5975380), (20, 3883997), (26, 2987690), (52, 1493845), (65, 1195076), (109, 712660), (130, 597538), (218, 356330), (260, 298769), (436, 178165), (545, 142532), (1090, 71266), (1417, 54820), (2180, 35633), (2741, 28340), (2834, 27410), (5482, 14170), (5668, 13705), (7085, 10964)]