771820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 1915200

約数和(自身を除く): 1143380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 149, 185, 259, 298, 370, 518, 596, 740, 745, 1036, 1043, 1295, 1490, 2086, 2590, 2980, 4172, 5180, 5215, 5513, 10430, 11026, 20860, 22052, 27565, 38591, 55130, 77182, 110260, 154364, 192955, 385910, 771820]

約数ペア:

[(1, 771820), (2, 385910), (4, 192955), (5, 154364), (7, 110260), (10, 77182), (14, 55130), (20, 38591), (28, 27565), (35, 22052), (37, 20860), (70, 11026), (74, 10430), (140, 5513), (148, 5215), (149, 5180), (185, 4172), (259, 2980), (298, 2590), (370, 2086), (518, 1490), (596, 1295), (740, 1043), (745, 1036)]