20478276

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:103

約数の個数: 216

約数和(自身を含む): 69713280

約数和(自身を除く): 49235004

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 19, 21, 26, 28, 36, 38, 39, 42, 47, 49, 52, 57, 63, 76, 78, 84, 91, 94, 98, 114, 117, 126, 133, 141, 147, 156, 171, 182, 188, 196, 228, 234, 247, 252, 266, 273, 282, 294, 329, 342, 364, 399, 423, 441, 468, 494, 532, 546, 564, 588, 611, 637, 658, 684, 741, 798, 819, 846, 882, 893, 931, 987, 988, 1092, 1197, 1222, 1274, 1316, 1482, 1596, 1638, 1692, 1729, 1764, 1786, 1833, 1862, 1911, 1974, 2223, 2303, 2394, 2444, 2548, 2679, 2793, 2961, 2964, 3276, 3458, 3572, 3666, 3724, 3822, 3948, 4277, 4446, 4606, 4788, 5187, 5358, 5499, 5586, 5733, 5922, 6251, 6909, 6916, 7332, 7644, 8037, 8379, 8554, 8892, 9212, 10374, 10716, 10998, 11172, 11466, 11609, 11844, 12103, 12502, 12831, 13818, 15561, 16074, 16758, 17108, 18753, 20727, 20748, 21996, 22932, 23218, 24206, 25004, 25662, 27636, 29939, 31122, 32148, 33516, 34827, 36309, 37506, 38493, 41454, 43757, 46436, 48412, 51324, 56259, 59878, 62244, 69654, 72618, 75012, 76986, 81263, 82908, 87514, 89817, 104481, 108927, 112518, 119756, 131271, 139308, 145236, 153972, 162526, 175028, 179634, 208962, 217854, 225036, 243789, 262542, 269451, 325052, 359268, 393813, 417924, 435708, 487578, 525084, 538902, 568841, 731367, 787626, 975156, 1077804, 1137682, 1462734, 1575252, 1706523, 2275364, 2925468, 3413046, 5119569, 6826092, 10239138, 20478276]

約数ペア:

[(1, 20478276), (2, 10239138), (3, 6826092), (4, 5119569), (6, 3413046), (7, 2925468), (9, 2275364), (12, 1706523), (13, 1575252), (14, 1462734), (18, 1137682), (19, 1077804), (21, 975156), (26, 787626), (28, 731367), (36, 568841), (38, 538902), (39, 525084), (42, 487578), (47, 435708), (49, 417924), (52, 393813), (57, 359268), (63, 325052), (76, 269451), (78, 262542), (84, 243789), (91, 225036), (94, 217854), (98, 208962), (114, 179634), (117, 175028), (126, 162526), (133, 153972), (141, 145236), (147, 139308), (156, 131271), (171, 119756), (182, 112518), (188, 108927), (196, 104481), (228, 89817), (234, 87514), (247, 82908), (252, 81263), (266, 76986), (273, 75012), (282, 72618), (294, 69654), (329, 62244), (342, 59878), (364, 56259), (399, 51324), (423, 48412), (441, 46436), (468, 43757), (494, 41454), (532, 38493), (546, 37506), (564, 36309), (588, 34827), (611, 33516), (637, 32148), (658, 31122), (684, 29939), (741, 27636), (798, 25662), (819, 25004), (846, 24206), (882, 23218), (893, 22932), (931, 21996), (987, 20748), (988, 20727), (1092, 18753), (1197, 17108), (1222, 16758), (1274, 16074), (1316, 15561), (1482, 13818), (1596, 12831), (1638, 12502), (1692, 12103), (1729, 11844), (1764, 11609), (1786, 11466), (1833, 11172), (1862, 10998), (1911, 10716), (1974, 10374), (2223, 9212), (2303, 8892), (2394, 8554), (2444, 8379), (2548, 8037), (2679, 7644), (2793, 7332), (2961, 6916), (2964, 6909), (3276, 6251), (3458, 5922), (3572, 5733), (3666, 5586), (3724, 5499), (3822, 5358), (3948, 5187), (4277, 4788), (4446, 4606)]