28389816

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{619}}^1$

素因数の和:658

約数の個数: 144

約数和(自身を含む): 96478200

約数和(自身を除く): 68088384

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 28, 36, 39, 42, 49, 52, 56, 63, 72, 78, 84, 91, 98, 104, 117, 126, 147, 156, 168, 182, 196, 234, 252, 273, 294, 312, 364, 392, 441, 468, 504, 546, 588, 619, 637, 728, 819, 882, 936, 1092, 1176, 1238, 1274, 1638, 1764, 1857, 1911, 2184, 2476, 2548, 3276, 3528, 3714, 3822, 4333, 4952, 5096, 5571, 5733, 6552, 7428, 7644, 8047, 8666, 11142, 11466, 12999, 14856, 15288, 16094, 17332, 22284, 22932, 24141, 25998, 30331, 32188, 34664, 38997, 44568, 45864, 48282, 51996, 56329, 60662, 64376, 72423, 77994, 90993, 96564, 103992, 112658, 121324, 144846, 155988, 168987, 181986, 193128, 225316, 242648, 272979, 289692, 311976, 337974, 363972, 394303, 450632, 506961, 545958, 579384, 675948, 727944, 788606, 1013922, 1091916, 1182909, 1351896, 1577212, 2027844, 2183832, 2365818, 3154424, 3548727, 4055688, 4731636, 7097454, 9463272, 14194908, 28389816]

約数ペア:

[(1, 28389816), (2, 14194908), (3, 9463272), (4, 7097454), (6, 4731636), (7, 4055688), (8, 3548727), (9, 3154424), (12, 2365818), (13, 2183832), (14, 2027844), (18, 1577212), (21, 1351896), (24, 1182909), (26, 1091916), (28, 1013922), (36, 788606), (39, 727944), (42, 675948), (49, 579384), (52, 545958), (56, 506961), (63, 450632), (72, 394303), (78, 363972), (84, 337974), (91, 311976), (98, 289692), (104, 272979), (117, 242648), (126, 225316), (147, 193128), (156, 181986), (168, 168987), (182, 155988), (196, 144846), (234, 121324), (252, 112658), (273, 103992), (294, 96564), (312, 90993), (364, 77994), (392, 72423), (441, 64376), (468, 60662), (504, 56329), (546, 51996), (588, 48282), (619, 45864), (637, 44568), (728, 38997), (819, 34664), (882, 32188), (936, 30331), (1092, 25998), (1176, 24141), (1238, 22932), (1274, 22284), (1638, 17332), (1764, 16094), (1857, 15288), (1911, 14856), (2184, 12999), (2476, 11466), (2548, 11142), (3276, 8666), (3528, 8047), (3714, 7644), (3822, 7428), (4333, 6552), (4952, 5733), (5096, 5571)]