20213460736

素因数分解:

$2^8\times 7^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1\times {\mathrm{389}}^1$

素因数の和:790

約数の個数: 144

約数和(自身を含む): 46834744320

約数和(自身を除く): 26621283584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 107, 112, 128, 214, 224, 256, 271, 389, 428, 448, 542, 749, 778, 856, 896, 1084, 1498, 1556, 1712, 1792, 1897, 2168, 2723, 2996, 3112, 3424, 3794, 4336, 5446, 5992, 6224, 6848, 7588, 8672, 10892, 11984, 12448, 13696, 15176, 17344, 21784, 23968, 24896, 27392, 28997, 30352, 34688, 41623, 43568, 47936, 49792, 57994, 60704, 69376, 83246, 87136, 95872, 99584, 105419, 115988, 121408, 166492, 174272, 191744, 202979, 210838, 231976, 242816, 291361, 332984, 348544, 405958, 421676, 463952, 485632, 582722, 665968, 697088, 737933, 811916, 843352, 927904, 1165444, 1331936, 1475866, 1623832, 1686704, 1855808, 2330888, 2663872, 2951732, 3247664, 3373408, 3711616, 4661776, 5327744, 5903464, 6495328, 6746816, 7423232, 9323552, 10655488, 11279833, 11806928, 12990656, 13493632, 18647104, 22559666, 23613856, 25981312, 26987264, 37294208, 45119332, 47227712, 51962624, 74588416, 78958831, 90238664, 94455424, 157917662, 180477328, 188910848, 315835324, 360954656, 631670648, 721909312, 1263341296, 1443818624, 2526682592, 2887637248, 5053365184, 10106730368, 20213460736]

約数ペア:

[(1, 20213460736), (2, 10106730368), (4, 5053365184), (7, 2887637248), (8, 2526682592), (14, 1443818624), (16, 1263341296), (28, 721909312), (32, 631670648), (56, 360954656), (64, 315835324), (107, 188910848), (112, 180477328), (128, 157917662), (214, 94455424), (224, 90238664), (256, 78958831), (271, 74588416), (389, 51962624), (428, 47227712), (448, 45119332), (542, 37294208), (749, 26987264), (778, 25981312), (856, 23613856), (896, 22559666), (1084, 18647104), (1498, 13493632), (1556, 12990656), (1712, 11806928), (1792, 11279833), (1897, 10655488), (2168, 9323552), (2723, 7423232), (2996, 6746816), (3112, 6495328), (3424, 5903464), (3794, 5327744), (4336, 4661776), (5446, 3711616), (5992, 3373408), (6224, 3247664), (6848, 2951732), (7588, 2663872), (8672, 2330888), (10892, 1855808), (11984, 1686704), (12448, 1623832), (13696, 1475866), (15176, 1331936), (17344, 1165444), (21784, 927904), (23968, 843352), (24896, 811916), (27392, 737933), (28997, 697088), (30352, 665968), (34688, 582722), (41623, 485632), (43568, 463952), (47936, 421676), (49792, 405958), (57994, 348544), (60704, 332984), (69376, 291361), (83246, 242816), (87136, 231976), (95872, 210838), (99584, 202979), (105419, 191744), (115988, 174272), (121408, 166492)]