257786640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21061}}^1$

素因数の和:21097

約数の個数: 120

約数和(自身を含む): 916702488

約数和(自身を除く): 658915848

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 102, 120, 136, 144, 153, 170, 180, 204, 240, 255, 272, 306, 340, 360, 408, 510, 612, 680, 720, 765, 816, 1020, 1224, 1360, 1530, 2040, 2448, 3060, 4080, 6120, 12240, 21061, 42122, 63183, 84244, 105305, 126366, 168488, 189549, 210610, 252732, 315915, 336976, 358037, 379098, 421220, 505464, 631830, 716074, 758196, 842440, 947745, 1010928, 1074111, 1263660, 1432148, 1516392, 1684880, 1790185, 1895490, 2148222, 2527320, 2864296, 3032784, 3222333, 3580370, 3790980, 4296444, 5054640, 5370555, 5728592, 6444666, 7160740, 7581960, 8592888, 10741110, 12889332, 14321480, 15163920, 16111665, 17185776, 21482220, 25778664, 28642960, 32223330, 42964440, 51557328, 64446660, 85928880, 128893320, 257786640]

約数ペア:

[(1, 257786640), (2, 128893320), (3, 85928880), (4, 64446660), (5, 51557328), (6, 42964440), (8, 32223330), (9, 28642960), (10, 25778664), (12, 21482220), (15, 17185776), (16, 16111665), (17, 15163920), (18, 14321480), (20, 12889332), (24, 10741110), (30, 8592888), (34, 7581960), (36, 7160740), (40, 6444666), (45, 5728592), (48, 5370555), (51, 5054640), (60, 4296444), (68, 3790980), (72, 3580370), (80, 3222333), (85, 3032784), (90, 2864296), (102, 2527320), (120, 2148222), (136, 1895490), (144, 1790185), (153, 1684880), (170, 1516392), (180, 1432148), (204, 1263660), (240, 1074111), (255, 1010928), (272, 947745), (306, 842440), (340, 758196), (360, 716074), (408, 631830), (510, 505464), (612, 421220), (680, 379098), (720, 358037), (765, 336976), (816, 315915), (1020, 252732), (1224, 210610), (1360, 189549), (1530, 168488), (2040, 126366), (2448, 105305), (3060, 84244), (4080, 63183), (6120, 42122), (12240, 21061)]