1291213420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{6737}}^1$

素因数の和:6827

約数の個数: 72

約数和(自身を含む): 3185402976

約数和(自身を除く): 1894189556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 1369, 2590, 2738, 5180, 5476, 6737, 6845, 9583, 13474, 13690, 19166, 26948, 27380, 33685, 38332, 47159, 47915, 67370, 94318, 95830, 134740, 188636, 191660, 235795, 249269, 471590, 498538, 943180, 997076, 1246345, 1744883, 2492690, 3489766, 4985380, 6979532, 8724415, 9222953, 17448830, 18445906, 34897660, 36891812, 46114765, 64560671, 92229530, 129121342, 184459060, 258242684, 322803355, 645606710, 1291213420]

約数ペア:

[(1, 1291213420), (2, 645606710), (4, 322803355), (5, 258242684), (7, 184459060), (10, 129121342), (14, 92229530), (20, 64560671), (28, 46114765), (35, 36891812), (37, 34897660), (70, 18445906), (74, 17448830), (140, 9222953), (148, 8724415), (185, 6979532), (259, 4985380), (370, 3489766), (518, 2492690), (740, 1744883), (1036, 1246345), (1295, 997076), (1369, 943180), (2590, 498538), (2738, 471590), (5180, 249269), (5476, 235795), (6737, 191660), (6845, 188636), (9583, 134740), (13474, 95830), (13690, 94318), (19166, 67370), (26948, 47915), (27380, 47159), (33685, 38332)]