19808651616

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{217429}}^1$

素因数の和:217528

約数の個数: 96

約数和(自身を含む): 56764884960

約数和(自身を除く): 36956233344

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 73, 78, 96, 104, 146, 156, 208, 219, 292, 312, 416, 438, 584, 624, 876, 949, 1168, 1248, 1752, 1898, 2336, 2847, 3504, 3796, 5694, 7008, 7592, 11388, 15184, 22776, 30368, 45552, 91104, 217429, 434858, 652287, 869716, 1304574, 1739432, 2609148, 2826577, 3478864, 5218296, 5653154, 6957728, 8479731, 10436592, 11306308, 15872317, 16959462, 20873184, 22612616, 31744634, 33918924, 45225232, 47616951, 63489268, 67837848, 90450464, 95233902, 126978536, 135675696, 190467804, 206340121, 253957072, 271351392, 380935608, 412680242, 507914144, 619020363, 761871216, 825360484, 1238040726, 1523742432, 1650720968, 2476081452, 3301441936, 4952162904, 6602883872, 9904325808, 19808651616]

約数ペア:

[(1, 19808651616), (2, 9904325808), (3, 6602883872), (4, 4952162904), (6, 3301441936), (8, 2476081452), (12, 1650720968), (13, 1523742432), (16, 1238040726), (24, 825360484), (26, 761871216), (32, 619020363), (39, 507914144), (48, 412680242), (52, 380935608), (73, 271351392), (78, 253957072), (96, 206340121), (104, 190467804), (146, 135675696), (156, 126978536), (208, 95233902), (219, 90450464), (292, 67837848), (312, 63489268), (416, 47616951), (438, 45225232), (584, 33918924), (624, 31744634), (876, 22612616), (949, 20873184), (1168, 16959462), (1248, 15872317), (1752, 11306308), (1898, 10436592), (2336, 8479731), (2847, 6957728), (3504, 5653154), (3796, 5218296), (5694, 3478864), (7008, 2826577), (7592, 2609148), (11388, 1739432), (15184, 1304574), (22776, 869716), (30368, 652287), (45552, 434858), (91104, 217429)]