639279520

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11717}}^1$

素因数の和:11774

約数の個数: 96

約数和(自身を含む): 1700891136

約数和(自身を除く): 1061611616

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 124, 155, 160, 176, 220, 248, 310, 341, 352, 440, 496, 620, 682, 880, 992, 1240, 1364, 1705, 1760, 2480, 2728, 3410, 4960, 5456, 6820, 10912, 11717, 13640, 23434, 27280, 46868, 54560, 58585, 93736, 117170, 128887, 187472, 234340, 257774, 363227, 374944, 468680, 515548, 644435, 726454, 937360, 1031096, 1288870, 1452908, 1816135, 1874720, 2062192, 2577740, 2905816, 3632270, 3995497, 4124384, 5155480, 5811632, 7264540, 7990994, 10310960, 11623264, 14529080, 15981988, 19977485, 20621920, 29058160, 31963976, 39954970, 58116320, 63927952, 79909940, 127855904, 159819880, 319639760, 639279520]

約数ペア:

[(1, 639279520), (2, 319639760), (4, 159819880), (5, 127855904), (8, 79909940), (10, 63927952), (11, 58116320), (16, 39954970), (20, 31963976), (22, 29058160), (31, 20621920), (32, 19977485), (40, 15981988), (44, 14529080), (55, 11623264), (62, 10310960), (80, 7990994), (88, 7264540), (110, 5811632), (124, 5155480), (155, 4124384), (160, 3995497), (176, 3632270), (220, 2905816), (248, 2577740), (310, 2062192), (341, 1874720), (352, 1816135), (440, 1452908), (496, 1288870), (620, 1031096), (682, 937360), (880, 726454), (992, 644435), (1240, 515548), (1364, 468680), (1705, 374944), (1760, 363227), (2480, 257774), (2728, 234340), (3410, 187472), (4960, 128887), (5456, 117170), (6820, 93736), (10912, 58585), (11717, 54560), (13640, 46868), (23434, 27280)]