161819840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5557}}^1$

素因数の和:5594

約数の個数: 112

約数和(自身を含む): 474341952

約数和(自身を除く): 312522112

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 728, 832, 910, 1040, 1120, 1456, 1820, 2080, 2240, 2912, 3640, 4160, 5557, 5824, 7280, 11114, 14560, 22228, 27785, 29120, 38899, 44456, 55570, 72241, 77798, 88912, 111140, 144482, 155596, 177824, 194495, 222280, 288964, 311192, 355648, 361205, 388990, 444560, 505687, 577928, 622384, 722410, 777980, 889120, 1011374, 1155856, 1244768, 1444820, 1555960, 1778240, 2022748, 2311712, 2489536, 2528435, 2889640, 3111920, 4045496, 4623424, 5056870, 5779280, 6223840, 8090992, 10113740, 11558560, 12447680, 16181984, 20227480, 23117120, 32363968, 40454960, 80909920, 161819840]

約数ペア:

[(1, 161819840), (2, 80909920), (4, 40454960), (5, 32363968), (7, 23117120), (8, 20227480), (10, 16181984), (13, 12447680), (14, 11558560), (16, 10113740), (20, 8090992), (26, 6223840), (28, 5779280), (32, 5056870), (35, 4623424), (40, 4045496), (52, 3111920), (56, 2889640), (64, 2528435), (65, 2489536), (70, 2311712), (80, 2022748), (91, 1778240), (104, 1555960), (112, 1444820), (130, 1244768), (140, 1155856), (160, 1011374), (182, 889120), (208, 777980), (224, 722410), (260, 622384), (280, 577928), (320, 505687), (364, 444560), (416, 388990), (448, 361205), (455, 355648), (520, 311192), (560, 288964), (728, 222280), (832, 194495), (910, 177824), (1040, 155596), (1120, 144482), (1456, 111140), (1820, 88912), (2080, 77798), (2240, 72241), (2912, 55570), (3640, 44456), (4160, 38899), (5557, 29120), (5824, 27785), (7280, 22228), (11114, 14560)]