15840680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1097}}^1$

素因数の和:1146

約数の個数: 48

約数和(自身を含む): 37650420

約数和(自身を除く): 21809740

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1097, 1444, 1805, 2194, 2888, 3610, 4388, 5485, 7220, 8776, 10970, 14440, 20843, 21940, 41686, 43880, 83372, 104215, 166744, 208430, 396017, 416860, 792034, 833720, 1584068, 1980085, 3168136, 3960170, 7920340, 15840680]

約数ペア:

[(1, 15840680), (2, 7920340), (4, 3960170), (5, 3168136), (8, 1980085), (10, 1584068), (19, 833720), (20, 792034), (38, 416860), (40, 396017), (76, 208430), (95, 166744), (152, 104215), (190, 83372), (361, 43880), (380, 41686), (722, 21940), (760, 20843), (1097, 14440), (1444, 10970), (1805, 8776), (2194, 7220), (2888, 5485), (3610, 4388)]