81870880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5623}}^1$

素因数の和:5658

約数の個数: 96

約数和(自身を含む): 238097664

約数和(自身を除く): 156226784

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1456, 1820, 2080, 2912, 3640, 5623, 7280, 11246, 14560, 22492, 28115, 39361, 44984, 56230, 73099, 78722, 89968, 112460, 146198, 157444, 179936, 196805, 224920, 292396, 314888, 365495, 393610, 449840, 511693, 584792, 629776, 730990, 787220, 899680, 1023386, 1169584, 1259552, 1461980, 1574440, 2046772, 2339168, 2558465, 2923960, 3148880, 4093544, 5116930, 5847920, 6297760, 8187088, 10233860, 11695840, 16374176, 20467720, 40935440, 81870880]

約数ペア:

[(1, 81870880), (2, 40935440), (4, 20467720), (5, 16374176), (7, 11695840), (8, 10233860), (10, 8187088), (13, 6297760), (14, 5847920), (16, 5116930), (20, 4093544), (26, 3148880), (28, 2923960), (32, 2558465), (35, 2339168), (40, 2046772), (52, 1574440), (56, 1461980), (65, 1259552), (70, 1169584), (80, 1023386), (91, 899680), (104, 787220), (112, 730990), (130, 629776), (140, 584792), (160, 511693), (182, 449840), (208, 393610), (224, 365495), (260, 314888), (280, 292396), (364, 224920), (416, 196805), (455, 179936), (520, 157444), (560, 146198), (728, 112460), (910, 89968), (1040, 78722), (1120, 73099), (1456, 56230), (1820, 44984), (2080, 39361), (2912, 28115), (3640, 22492), (5623, 14560), (7280, 11246)]