813226720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1291}}^1$

素因数の和:1464

約数の個数: 96

約数和(自身を含む): 2000388096

約数和(自身を除く): 1187161376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 127, 155, 160, 248, 254, 310, 496, 508, 620, 635, 992, 1016, 1240, 1270, 1291, 2032, 2480, 2540, 2582, 3937, 4064, 4960, 5080, 5164, 6455, 7874, 10160, 10328, 12910, 15748, 19685, 20320, 20656, 25820, 31496, 39370, 40021, 41312, 51640, 62992, 78740, 80042, 103280, 125984, 157480, 160084, 163957, 200105, 206560, 314960, 320168, 327914, 400210, 629920, 640336, 655828, 800420, 819785, 1280672, 1311656, 1600840, 1639570, 2623312, 3201680, 3279140, 5082667, 5246624, 6403360, 6558280, 10165334, 13116560, 20330668, 25413335, 26233120, 40661336, 50826670, 81322672, 101653340, 162645344, 203306680, 406613360, 813226720]

約数ペア:

[(1, 813226720), (2, 406613360), (4, 203306680), (5, 162645344), (8, 101653340), (10, 81322672), (16, 50826670), (20, 40661336), (31, 26233120), (32, 25413335), (40, 20330668), (62, 13116560), (80, 10165334), (124, 6558280), (127, 6403360), (155, 5246624), (160, 5082667), (248, 3279140), (254, 3201680), (310, 2623312), (496, 1639570), (508, 1600840), (620, 1311656), (635, 1280672), (992, 819785), (1016, 800420), (1240, 655828), (1270, 640336), (1291, 629920), (2032, 400210), (2480, 327914), (2540, 320168), (2582, 314960), (3937, 206560), (4064, 200105), (4960, 163957), (5080, 160084), (5164, 157480), (6455, 125984), (7874, 103280), (10160, 80042), (10328, 78740), (12910, 62992), (15748, 51640), (19685, 41312), (20320, 40021), (20656, 39370), (25820, 31496)]