208503520

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:504

約数の個数: 96

約数和(自身を含む): 514031616

約数和(自身を除く): 305528096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 127, 155, 160, 248, 254, 310, 331, 496, 508, 620, 635, 662, 992, 1016, 1240, 1270, 1324, 1655, 2032, 2480, 2540, 2648, 3310, 3937, 4064, 4960, 5080, 5296, 6620, 7874, 10160, 10261, 10592, 13240, 15748, 19685, 20320, 20522, 26480, 31496, 39370, 41044, 42037, 51305, 52960, 62992, 78740, 82088, 84074, 102610, 125984, 157480, 164176, 168148, 205220, 210185, 314960, 328352, 336296, 410440, 420370, 629920, 672592, 820880, 840740, 1303147, 1345184, 1641760, 1681480, 2606294, 3362960, 5212588, 6515735, 6725920, 10425176, 13031470, 20850352, 26062940, 41700704, 52125880, 104251760, 208503520]

約数ペア:

[(1, 208503520), (2, 104251760), (4, 52125880), (5, 41700704), (8, 26062940), (10, 20850352), (16, 13031470), (20, 10425176), (31, 6725920), (32, 6515735), (40, 5212588), (62, 3362960), (80, 2606294), (124, 1681480), (127, 1641760), (155, 1345184), (160, 1303147), (248, 840740), (254, 820880), (310, 672592), (331, 629920), (496, 420370), (508, 410440), (620, 336296), (635, 328352), (662, 314960), (992, 210185), (1016, 205220), (1240, 168148), (1270, 164176), (1324, 157480), (1655, 125984), (2032, 102610), (2480, 84074), (2540, 82088), (2648, 78740), (3310, 62992), (3937, 52960), (4064, 51305), (4960, 42037), (5080, 41044), (5296, 39370), (6620, 31496), (7874, 26480), (10160, 20522), (10261, 20320), (10592, 19685), (13240, 15748)]