31994040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20509}}^1$

素因数の和:20536

約数の個数: 64

約数和(自身を含む): 103370400

約数和(自身を除く): 71376360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20509, 41018, 61527, 82036, 102545, 123054, 164072, 205090, 246108, 266617, 307635, 410180, 492216, 533234, 615270, 799851, 820360, 1066468, 1230540, 1333085, 1599702, 2132936, 2461080, 2666170, 3199404, 3999255, 5332340, 6398808, 7998510, 10664680, 15997020, 31994040]

約数ペア:

[(1, 31994040), (2, 15997020), (3, 10664680), (4, 7998510), (5, 6398808), (6, 5332340), (8, 3999255), (10, 3199404), (12, 2666170), (13, 2461080), (15, 2132936), (20, 1599702), (24, 1333085), (26, 1230540), (30, 1066468), (39, 820360), (40, 799851), (52, 615270), (60, 533234), (65, 492216), (78, 410180), (104, 307635), (120, 266617), (130, 246108), (156, 205090), (195, 164072), (260, 123054), (312, 102545), (390, 82036), (520, 61527), (780, 41018), (1560, 20509)]