40706960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{463}}^1$

素因数の和:640

約数の個数: 80

約数和(自身を含む): 109088256

約数和(自身を除く): 68381296

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 463, 560, 628, 785, 926, 1099, 1256, 1570, 1852, 2198, 2315, 2512, 3140, 3241, 3704, 4396, 4630, 5495, 6280, 6482, 7408, 8792, 9260, 10990, 12560, 12964, 16205, 17584, 18520, 21980, 25928, 32410, 37040, 43960, 51856, 64820, 72691, 87920, 129640, 145382, 259280, 290764, 363455, 508837, 581528, 726910, 1017674, 1163056, 1453820, 2035348, 2544185, 2907640, 4070696, 5088370, 5815280, 8141392, 10176740, 20353480, 40706960]

約数ペア:

[(1, 40706960), (2, 20353480), (4, 10176740), (5, 8141392), (7, 5815280), (8, 5088370), (10, 4070696), (14, 2907640), (16, 2544185), (20, 2035348), (28, 1453820), (35, 1163056), (40, 1017674), (56, 726910), (70, 581528), (80, 508837), (112, 363455), (140, 290764), (157, 259280), (280, 145382), (314, 129640), (463, 87920), (560, 72691), (628, 64820), (785, 51856), (926, 43960), (1099, 37040), (1256, 32410), (1570, 25928), (1852, 21980), (2198, 18520), (2315, 17584), (2512, 16205), (3140, 12964), (3241, 12560), (3704, 10990), (4396, 9260), (4630, 8792), (5495, 7408), (6280, 6482)]