19405978.000000000

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2411}}^1$

素因数の和:2475

約数の個数: 96

約数和(自身を含む): 369556992

約数和(自身を除く): 232178212

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 37, 44, 55, 70, 74, 77, 110, 140, 148, 154, 185, 220, 259, 308, 370, 385, 407, 518, 740, 770, 814, 1036, 1295, 1540, 1628, 2035, 2411, 2590, 2849, 4070, 4822, 5180, 5698, 8140, 9644, 11396, 12055, 14245, 16877, 24110, 26521, 28490, 33754, 48220, 53042, 56980, 67508, 84385, 89207, 106084, 132605, 168770, 178414, 185647, 265210, 337540, 356828, 371294, 446035, 530420, 624449, 742588, 892070, 928235, 981277, 1248898, 1784140, 1856470, 1962554, 2497796, 3122245, 3712940, 3925108, 4906385, 6244490, 6868939, 9812770, 12488980, 13737878, 19625540, 27475756, 34344695, 68689390, 137378780]

約数ペア:

[(1, 137378780), (2, 68689390), (4, 34344695), (5, 27475756), (7, 19625540), (10, 13737878), (11, 12488980), (14, 9812770), (20, 6868939), (22, 6244490), (28, 4906385), (35, 3925108), (37, 3712940), (44, 3122245), (55, 2497796), (70, 1962554), (74, 1856470), (77, 1784140), (110, 1248898), (140, 981277), (148, 928235), (154, 892070), (185, 742588), (220, 624449), (259, 530420), (308, 446035), (370, 371294), (385, 356828), (407, 337540), (518, 265210), (740, 185647), (770, 178414), (814, 168770), (1036, 132605), (1295, 106084), (1540, 89207), (1628, 84385), (2035, 67508), (2411, 56980), (2590, 53042), (2849, 48220), (4070, 33754), (4822, 28490), (5180, 26521), (5698, 24110), (8140, 16877), (9644, 14245), (11396, 12055)]