20218191812

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1213}}^1\times {\mathrm{1579}}^1$

素因数の和:2845

約数の個数: 96

約数和(自身を含む): 45114182400

約数和(自身を除く): 24895990588

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 91, 116, 182, 203, 364, 377, 406, 754, 812, 1213, 1508, 1579, 2426, 2639, 3158, 4852, 5278, 6316, 8491, 10556, 11053, 15769, 16982, 20527, 22106, 31538, 33964, 35177, 41054, 44212, 45791, 63076, 70354, 82108, 91582, 110383, 140708, 143689, 183164, 220766, 246239, 287378, 320537, 441532, 457301, 492478, 574756, 595283, 641074, 914602, 984956, 1190566, 1282148, 1829204, 1915327, 2381132, 3201107, 3830654, 4166981, 6402214, 7661308, 8333962, 12804428, 13407289, 16667924, 24899251, 26814578, 49798502, 53629156, 55544483, 99597004, 111088966, 174294757, 222177932, 348589514, 388811381, 697179028, 722078279, 777622762, 1444156558, 1555245524, 2888313116, 5054547953, 10109095906, 20218191812]

約数ペア:

[(1, 20218191812), (2, 10109095906), (4, 5054547953), (7, 2888313116), (13, 1555245524), (14, 1444156558), (26, 777622762), (28, 722078279), (29, 697179028), (52, 388811381), (58, 348589514), (91, 222177932), (116, 174294757), (182, 111088966), (203, 99597004), (364, 55544483), (377, 53629156), (406, 49798502), (754, 26814578), (812, 24899251), (1213, 16667924), (1508, 13407289), (1579, 12804428), (2426, 8333962), (2639, 7661308), (3158, 6402214), (4852, 4166981), (5278, 3830654), (6316, 3201107), (8491, 2381132), (10556, 1915327), (11053, 1829204), (15769, 1282148), (16982, 1190566), (20527, 984956), (22106, 914602), (31538, 641074), (33964, 595283), (35177, 574756), (41054, 492478), (44212, 457301), (45791, 441532), (63076, 320537), (70354, 287378), (82108, 246239), (91582, 220766), (110383, 183164), (140708, 143689)]