40720810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{13619}}^1$

素因数の和:13662

約数の個数: 32

約数和(自身を含む): 82373760

約数和(自身を除く): 41652950

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 13619, 27238, 68095, 136190, 177047, 313237, 354094, 626474, 885235, 1566185, 1770470, 3132370, 4072081, 8144162, 20360405, 40720810]

約数ペア:

[(1, 40720810), (2, 20360405), (5, 8144162), (10, 4072081), (13, 3132370), (23, 1770470), (26, 1566185), (46, 885235), (65, 626474), (115, 354094), (130, 313237), (230, 177047), (299, 136190), (598, 68095), (1495, 27238), (2990, 13619)]