66875720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{463}}^1$

素因数の和:654

約数の個数: 64

約数和(自身を含む): 158353920

約数和(自身を除く): 91478200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 157, 184, 230, 314, 460, 463, 628, 785, 920, 926, 1256, 1570, 1852, 2315, 3140, 3611, 3704, 4630, 6280, 7222, 9260, 10649, 14444, 18055, 18520, 21298, 28888, 36110, 42596, 53245, 72220, 72691, 85192, 106490, 144440, 145382, 212980, 290764, 363455, 425960, 581528, 726910, 1453820, 1671893, 2907640, 3343786, 6687572, 8359465, 13375144, 16718930, 33437860, 66875720]

約数ペア:

[(1, 66875720), (2, 33437860), (4, 16718930), (5, 13375144), (8, 8359465), (10, 6687572), (20, 3343786), (23, 2907640), (40, 1671893), (46, 1453820), (92, 726910), (115, 581528), (157, 425960), (184, 363455), (230, 290764), (314, 212980), (460, 145382), (463, 144440), (628, 106490), (785, 85192), (920, 72691), (926, 72220), (1256, 53245), (1570, 42596), (1852, 36110), (2315, 28888), (3140, 21298), (3611, 18520), (3704, 18055), (4630, 14444), (6280, 10649), (7222, 9260)]