31280004

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 97843200

約数和(自身を除く): 66563196

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 47, 57, 63, 76, 84, 94, 114, 126, 133, 139, 141, 171, 188, 228, 252, 266, 278, 282, 329, 342, 399, 417, 423, 532, 556, 564, 658, 684, 798, 834, 846, 893, 973, 987, 1197, 1251, 1316, 1596, 1668, 1692, 1786, 1946, 1974, 2394, 2502, 2641, 2679, 2919, 2961, 3572, 3892, 3948, 4788, 5004, 5282, 5358, 5838, 5922, 6251, 6533, 7923, 8037, 8757, 10564, 10716, 11676, 11844, 12502, 13066, 15846, 16074, 17514, 18487, 18753, 19599, 23769, 25004, 26132, 31692, 32148, 35028, 36974, 37506, 39198, 45731, 47538, 55461, 56259, 58797, 73948, 75012, 78396, 91462, 95076, 110922, 112518, 117594, 124127, 137193, 166383, 182924, 221844, 225036, 235188, 248254, 274386, 332766, 372381, 411579, 496508, 548772, 665532, 744762, 823158, 868889, 1117143, 1489524, 1646316, 1737778, 2234286, 2606667, 3475556, 4468572, 5213334, 7820001, 10426668, 15640002, 31280004]

約数ペア:

[(1, 31280004), (2, 15640002), (3, 10426668), (4, 7820001), (6, 5213334), (7, 4468572), (9, 3475556), (12, 2606667), (14, 2234286), (18, 1737778), (19, 1646316), (21, 1489524), (28, 1117143), (36, 868889), (38, 823158), (42, 744762), (47, 665532), (57, 548772), (63, 496508), (76, 411579), (84, 372381), (94, 332766), (114, 274386), (126, 248254), (133, 235188), (139, 225036), (141, 221844), (171, 182924), (188, 166383), (228, 137193), (252, 124127), (266, 117594), (278, 112518), (282, 110922), (329, 95076), (342, 91462), (399, 78396), (417, 75012), (423, 73948), (532, 58797), (556, 56259), (564, 55461), (658, 47538), (684, 45731), (798, 39198), (834, 37506), (846, 36974), (893, 35028), (973, 32148), (987, 31692), (1197, 26132), (1251, 25004), (1316, 23769), (1596, 19599), (1668, 18753), (1692, 18487), (1786, 17514), (1946, 16074), (1974, 15846), (2394, 13066), (2502, 12502), (2641, 11844), (2679, 11676), (2919, 10716), (2961, 10564), (3572, 8757), (3892, 8037), (3948, 7923), (4788, 6533), (5004, 6251), (5282, 5922), (5358, 5838)]