660156160

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 1657700352

約数和(自身を除く): 997544192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 128, 131, 155, 160, 248, 254, 256, 262, 310, 320, 496, 508, 524, 620, 635, 640, 655, 992, 1016, 1048, 1240, 1270, 1280, 1310, 1984, 2032, 2096, 2480, 2540, 2620, 3937, 3968, 4061, 4064, 4192, 4960, 5080, 5240, 7874, 7936, 8122, 8128, 8384, 9920, 10160, 10480, 15748, 16244, 16256, 16637, 16768, 19685, 19840, 20305, 20320, 20960, 31496, 32488, 32512, 33274, 33536, 39370, 39680, 40610, 40640, 41920, 62992, 64976, 66548, 78740, 81220, 81280, 83185, 83840, 125984, 129952, 133096, 157480, 162440, 162560, 166370, 167680, 251968, 259904, 266192, 314960, 324880, 332740, 503936, 515747, 519808, 532384, 629920, 649760, 665480, 1007872, 1031494, 1039616, 1064768, 1259840, 1299520, 1330960, 2062988, 2129536, 2519680, 2578735, 2599040, 2661920, 4125976, 4259072, 5039360, 5157470, 5198080, 5323840, 8251952, 10314940, 10647680, 16503904, 20629880, 21295360, 33007808, 41259760, 66015616, 82519520, 132031232, 165039040, 330078080, 660156160]

約数ペア:

[(1, 660156160), (2, 330078080), (4, 165039040), (5, 132031232), (8, 82519520), (10, 66015616), (16, 41259760), (20, 33007808), (31, 21295360), (32, 20629880), (40, 16503904), (62, 10647680), (64, 10314940), (80, 8251952), (124, 5323840), (127, 5198080), (128, 5157470), (131, 5039360), (155, 4259072), (160, 4125976), (248, 2661920), (254, 2599040), (256, 2578735), (262, 2519680), (310, 2129536), (320, 2062988), (496, 1330960), (508, 1299520), (524, 1259840), (620, 1064768), (635, 1039616), (640, 1031494), (655, 1007872), (992, 665480), (1016, 649760), (1048, 629920), (1240, 532384), (1270, 519808), (1280, 515747), (1310, 503936), (1984, 332740), (2032, 324880), (2096, 314960), (2480, 266192), (2540, 259904), (2620, 251968), (3937, 167680), (3968, 166370), (4061, 162560), (4064, 162440), (4192, 157480), (4960, 133096), (5080, 129952), (5240, 125984), (7874, 83840), (7936, 83185), (8122, 81280), (8128, 81220), (8384, 78740), (9920, 66548), (10160, 64976), (10480, 62992), (15748, 41920), (16244, 40640), (16256, 40610), (16637, 39680), (16768, 39370), (19685, 33536), (19840, 33274), (20305, 32512), (20320, 32488), (20960, 31496)]