20145121408

素因数分解:

$2^7\times {\mathrm{97}}^1\times {\mathrm{1103}}^1\times {\mathrm{1471}}^1$

素因数の和:2685

約数の個数: 64

約数和(自身を含む): 40610949120

約数和(自身を除く): 20465827712

約数列:

[1, 2, 4, 8, 16, 32, 64, 97, 128, 194, 388, 776, 1103, 1471, 1552, 2206, 2942, 3104, 4412, 5884, 6208, 8824, 11768, 12416, 17648, 23536, 35296, 47072, 70592, 94144, 106991, 141184, 142687, 188288, 213982, 285374, 427964, 570748, 855928, 1141496, 1622513, 1711856, 2282992, 3245026, 3423712, 4565984, 6490052, 6847424, 9131968, 12980104, 13694848, 18263936, 25960208, 51920416, 103840832, 157383761, 207681664, 314767522, 629535044, 1259070088, 2518140176, 5036280352, 10072560704, 20145121408]

約数ペア:

[(1, 20145121408), (2, 10072560704), (4, 5036280352), (8, 2518140176), (16, 1259070088), (32, 629535044), (64, 314767522), (97, 207681664), (128, 157383761), (194, 103840832), (388, 51920416), (776, 25960208), (1103, 18263936), (1471, 13694848), (1552, 12980104), (2206, 9131968), (2942, 6847424), (3104, 6490052), (4412, 4565984), (5884, 3423712), (6208, 3245026), (8824, 2282992), (11768, 1711856), (12416, 1622513), (17648, 1141496), (23536, 855928), (35296, 570748), (47072, 427964), (70592, 285374), (94144, 213982), (106991, 188288), (141184, 142687)]