626780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1$

素因数の和:75

約数の個数: 72

約数和(自身を含む): 1698144

約数和(自身を除く): 1071364

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 37, 44, 55, 70, 74, 77, 110, 121, 140, 148, 154, 185, 220, 242, 259, 308, 370, 385, 407, 484, 518, 605, 740, 770, 814, 847, 1036, 1210, 1295, 1540, 1628, 1694, 2035, 2420, 2590, 2849, 3388, 4070, 4235, 4477, 5180, 5698, 8140, 8470, 8954, 11396, 14245, 16940, 17908, 22385, 28490, 31339, 44770, 56980, 62678, 89540, 125356, 156695, 313390, 626780]

約数ペア:

[(1, 626780), (2, 313390), (4, 156695), (5, 125356), (7, 89540), (10, 62678), (11, 56980), (14, 44770), (20, 31339), (22, 28490), (28, 22385), (35, 17908), (37, 16940), (44, 14245), (55, 11396), (70, 8954), (74, 8470), (77, 8140), (110, 5698), (121, 5180), (140, 4477), (148, 4235), (154, 4070), (185, 3388), (220, 2849), (242, 2590), (259, 2420), (308, 2035), (370, 1694), (385, 1628), (407, 1540), (484, 1295), (518, 1210), (605, 1036), (740, 847), (770, 814)]