19287730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{677}}^1$

素因数の和:739

約数の個数: 64

約数和(自身を含む): 44520192

約数和(自身を除く): 25232462

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 37, 55, 70, 74, 77, 110, 154, 185, 259, 370, 385, 407, 518, 677, 770, 814, 1295, 1354, 2035, 2590, 2849, 3385, 4070, 4739, 5698, 6770, 7447, 9478, 14245, 14894, 23695, 25049, 28490, 37235, 47390, 50098, 52129, 74470, 104258, 125245, 175343, 250490, 260645, 275539, 350686, 521290, 551078, 876715, 1377695, 1753430, 1928773, 2755390, 3857546, 9643865, 19287730]

約数ペア:

[(1, 19287730), (2, 9643865), (5, 3857546), (7, 2755390), (10, 1928773), (11, 1753430), (14, 1377695), (22, 876715), (35, 551078), (37, 521290), (55, 350686), (70, 275539), (74, 260645), (77, 250490), (110, 175343), (154, 125245), (185, 104258), (259, 74470), (370, 52129), (385, 50098), (407, 47390), (518, 37235), (677, 28490), (770, 25049), (814, 23695), (1295, 14894), (1354, 14245), (2035, 9478), (2590, 7447), (2849, 6770), (3385, 5698), (4070, 4739)]