639028026

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20533}}^1$

素因数の和:20580

約数の個数: 96

約数和(自身を含む): 1793850240

約数和(自身を除く): 1154822214

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 19, 21, 26, 38, 39, 42, 57, 63, 78, 91, 114, 117, 126, 133, 171, 182, 234, 247, 266, 273, 342, 399, 494, 546, 741, 798, 819, 1197, 1482, 1638, 1729, 2223, 2394, 3458, 4446, 5187, 10374, 15561, 20533, 31122, 41066, 61599, 123198, 143731, 184797, 266929, 287462, 369594, 390127, 431193, 533858, 780254, 800787, 862386, 1170381, 1293579, 1601574, 1868503, 2340762, 2402361, 2587158, 2730889, 3511143, 3737006, 4804722, 5071651, 5461778, 5605509, 7022286, 8192667, 10143302, 11211018, 15214953, 16385334, 16816527, 24578001, 30429906, 33633054, 35501557, 45644859, 49156002, 71003114, 91289718, 106504671, 213009342, 319514013, 639028026]

約数ペア:

[(1, 639028026), (2, 319514013), (3, 213009342), (6, 106504671), (7, 91289718), (9, 71003114), (13, 49156002), (14, 45644859), (18, 35501557), (19, 33633054), (21, 30429906), (26, 24578001), (38, 16816527), (39, 16385334), (42, 15214953), (57, 11211018), (63, 10143302), (78, 8192667), (91, 7022286), (114, 5605509), (117, 5461778), (126, 5071651), (133, 4804722), (171, 3737006), (182, 3511143), (234, 2730889), (247, 2587158), (266, 2402361), (273, 2340762), (342, 1868503), (399, 1601574), (494, 1293579), (546, 1170381), (741, 862386), (798, 800787), (819, 780254), (1197, 533858), (1482, 431193), (1638, 390127), (1729, 369594), (2223, 287462), (2394, 266929), (3458, 184797), (4446, 143731), (5187, 123198), (10374, 61599), (15561, 41066), (20533, 31122)]