19999470864

素因数分解:

$2^4\times 3^1\times {\mathrm{97}}^1\times {\mathrm{1613}}^1\times {\mathrm{2663}}^1$

素因数の和:4384

約数の個数: 80

約数和(自身を含む): 52249905792

約数和(自身を除く): 32250434928

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 97, 194, 291, 388, 582, 776, 1164, 1552, 1613, 2328, 2663, 3226, 4656, 4839, 5326, 6452, 7989, 9678, 10652, 12904, 15978, 19356, 21304, 25808, 31956, 38712, 42608, 63912, 77424, 127824, 156461, 258311, 312922, 469383, 516622, 625844, 774933, 938766, 1033244, 1251688, 1549866, 1877532, 2066488, 2503376, 3099732, 3755064, 4132976, 4295419, 6199464, 7510128, 8590838, 12398928, 12886257, 17181676, 25772514, 34363352, 51545028, 68726704, 103090056, 206180112, 416655643, 833311286, 1249966929, 1666622572, 2499933858, 3333245144, 4999867716, 6666490288, 9999735432, 19999470864]

約数ペア:

[(1, 19999470864), (2, 9999735432), (3, 6666490288), (4, 4999867716), (6, 3333245144), (8, 2499933858), (12, 1666622572), (16, 1249966929), (24, 833311286), (48, 416655643), (97, 206180112), (194, 103090056), (291, 68726704), (388, 51545028), (582, 34363352), (776, 25772514), (1164, 17181676), (1552, 12886257), (1613, 12398928), (2328, 8590838), (2663, 7510128), (3226, 6199464), (4656, 4295419), (4839, 4132976), (5326, 3755064), (6452, 3099732), (7989, 2503376), (9678, 2066488), (10652, 1877532), (12904, 1549866), (15978, 1251688), (19356, 1033244), (21304, 938766), (25808, 774933), (31956, 625844), (38712, 516622), (42608, 469383), (63912, 312922), (77424, 258311), (127824, 156461)]