261214720

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:250

約数の個数: 160

約数和(自身を含む): 692955648

約数和(自身を除く): 431740928

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 64, 65, 80, 94, 104, 128, 130, 160, 167, 188, 208, 235, 256, 260, 320, 334, 376, 416, 470, 512, 520, 611, 640, 668, 752, 832, 835, 940, 1040, 1222, 1280, 1336, 1504, 1664, 1670, 1880, 2080, 2171, 2444, 2560, 2672, 3008, 3055, 3328, 3340, 3760, 4160, 4342, 4888, 5344, 6016, 6110, 6656, 6680, 7520, 7849, 8320, 8684, 9776, 10688, 10855, 12032, 12220, 13360, 15040, 15698, 16640, 17368, 19552, 21376, 21710, 24064, 24440, 26720, 30080, 31396, 33280, 34736, 39104, 39245, 42752, 43420, 48880, 53440, 60160, 62792, 69472, 78208, 78490, 85504, 86840, 97760, 102037, 106880, 120320, 125584, 138944, 156416, 156980, 173680, 195520, 204074, 213760, 251168, 277888, 312832, 313960, 347360, 391040, 408148, 427520, 502336, 510185, 555776, 627920, 694720, 782080, 816296, 1004672, 1020370, 1111552, 1255840, 1389440, 1564160, 1632592, 2009344, 2040740, 2511680, 2778880, 3265184, 4018688, 4081480, 5023360, 5557760, 6530368, 8162960, 10046720, 13060736, 16325920, 20093440, 26121472, 32651840, 52242944, 65303680, 130607360, 261214720]

約数ペア:

[(1, 261214720), (2, 130607360), (4, 65303680), (5, 52242944), (8, 32651840), (10, 26121472), (13, 20093440), (16, 16325920), (20, 13060736), (26, 10046720), (32, 8162960), (40, 6530368), (47, 5557760), (52, 5023360), (64, 4081480), (65, 4018688), (80, 3265184), (94, 2778880), (104, 2511680), (128, 2040740), (130, 2009344), (160, 1632592), (167, 1564160), (188, 1389440), (208, 1255840), (235, 1111552), (256, 1020370), (260, 1004672), (320, 816296), (334, 782080), (376, 694720), (416, 627920), (470, 555776), (512, 510185), (520, 502336), (611, 427520), (640, 408148), (668, 391040), (752, 347360), (832, 313960), (835, 312832), (940, 277888), (1040, 251168), (1222, 213760), (1280, 204074), (1336, 195520), (1504, 173680), (1664, 156980), (1670, 156416), (1880, 138944), (2080, 125584), (2171, 120320), (2444, 106880), (2560, 102037), (2672, 97760), (3008, 86840), (3055, 85504), (3328, 78490), (3340, 78208), (3760, 69472), (4160, 62792), (4342, 60160), (4888, 53440), (5344, 48880), (6016, 43420), (6110, 42752), (6656, 39245), (6680, 39104), (7520, 34736), (7849, 33280), (8320, 31396), (8684, 30080), (9776, 26720), (10688, 24440), (10855, 24064), (12032, 21710), (12220, 21376), (13360, 19552), (15040, 17368), (15698, 16640)]