81924920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:493

約数の個数: 128

約数和(自身を含む): 233832960

約数和(自身を除く): 151908040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 67, 70, 77, 88, 110, 134, 140, 154, 220, 268, 280, 308, 335, 385, 397, 440, 469, 536, 616, 670, 737, 770, 794, 938, 1340, 1474, 1540, 1588, 1876, 1985, 2345, 2680, 2779, 2948, 3080, 3176, 3685, 3752, 3970, 4367, 4690, 5159, 5558, 5896, 7370, 7940, 8734, 9380, 10318, 11116, 13895, 14740, 15880, 17468, 18760, 20636, 21835, 22232, 25795, 26599, 27790, 29480, 30569, 34936, 41272, 43670, 51590, 53198, 55580, 61138, 87340, 103180, 106396, 111160, 122276, 132995, 152845, 174680, 186193, 206360, 212792, 244552, 265990, 292589, 305690, 372386, 531980, 585178, 611380, 744772, 930965, 1063960, 1170356, 1222760, 1462945, 1489544, 1861930, 2048123, 2340712, 2925890, 3723860, 4096246, 5851780, 7447720, 8192492, 10240615, 11703560, 16384984, 20481230, 40962460, 81924920]

約数ペア:

[(1, 81924920), (2, 40962460), (4, 20481230), (5, 16384984), (7, 11703560), (8, 10240615), (10, 8192492), (11, 7447720), (14, 5851780), (20, 4096246), (22, 3723860), (28, 2925890), (35, 2340712), (40, 2048123), (44, 1861930), (55, 1489544), (56, 1462945), (67, 1222760), (70, 1170356), (77, 1063960), (88, 930965), (110, 744772), (134, 611380), (140, 585178), (154, 531980), (220, 372386), (268, 305690), (280, 292589), (308, 265990), (335, 244552), (385, 212792), (397, 206360), (440, 186193), (469, 174680), (536, 152845), (616, 132995), (670, 122276), (737, 111160), (770, 106396), (794, 103180), (938, 87340), (1340, 61138), (1474, 55580), (1540, 53198), (1588, 51590), (1876, 43670), (1985, 41272), (2345, 34936), (2680, 30569), (2779, 29480), (2948, 27790), (3080, 26599), (3176, 25795), (3685, 22232), (3752, 21835), (3970, 20636), (4367, 18760), (4690, 17468), (5159, 15880), (5558, 14740), (5896, 13895), (7370, 11116), (7940, 10318), (8734, 9380)]