127681820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{157}}^2$

素因数の和:367

約数の個数: 72

約数和(自身を含む): 316735776

約数和(自身を除く): 189053956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 157, 185, 259, 314, 370, 518, 628, 740, 785, 1036, 1099, 1295, 1570, 2198, 2590, 3140, 4396, 5180, 5495, 5809, 10990, 11618, 21980, 23236, 24649, 29045, 40663, 49298, 58090, 81326, 98596, 116180, 123245, 162652, 172543, 203315, 246490, 345086, 406630, 492980, 690172, 813260, 862715, 912013, 1725430, 1824026, 3450860, 3648052, 4560065, 6384091, 9120130, 12768182, 18240260, 25536364, 31920455, 63840910, 127681820]

約数ペア:

[(1, 127681820), (2, 63840910), (4, 31920455), (5, 25536364), (7, 18240260), (10, 12768182), (14, 9120130), (20, 6384091), (28, 4560065), (35, 3648052), (37, 3450860), (70, 1824026), (74, 1725430), (140, 912013), (148, 862715), (157, 813260), (185, 690172), (259, 492980), (314, 406630), (370, 345086), (518, 246490), (628, 203315), (740, 172543), (785, 162652), (1036, 123245), (1099, 116180), (1295, 98596), (1570, 81326), (2198, 58090), (2590, 49298), (3140, 40663), (4396, 29045), (5180, 24649), (5495, 23236), (5809, 21980), (10990, 11618)]