255955840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:173

約数の個数: 256

約数和(自身を含む): 767692800

約数和(自身を除く): 511736960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 32, 35, 38, 40, 56, 62, 64, 70, 76, 80, 95, 97, 112, 124, 128, 133, 140, 152, 155, 160, 190, 194, 217, 224, 248, 266, 280, 304, 310, 320, 380, 388, 434, 448, 485, 496, 532, 560, 589, 608, 620, 640, 665, 679, 760, 776, 868, 896, 970, 992, 1064, 1085, 1120, 1178, 1216, 1240, 1330, 1358, 1520, 1552, 1736, 1843, 1940, 1984, 2128, 2170, 2240, 2356, 2432, 2480, 2660, 2716, 2945, 3007, 3040, 3104, 3395, 3472, 3686, 3880, 3968, 4123, 4256, 4340, 4480, 4712, 4960, 5320, 5432, 5890, 6014, 6080, 6208, 6790, 6944, 7372, 7760, 8246, 8512, 8680, 9215, 9424, 9920, 10640, 10864, 11780, 12028, 12160, 12416, 12901, 13580, 13888, 14744, 15035, 15520, 16492, 17024, 17360, 18430, 18848, 19840, 20615, 21049, 21280, 21728, 23560, 24056, 25802, 27160, 27776, 29488, 30070, 31040, 32984, 34720, 36860, 37696, 41230, 42098, 42560, 43456, 47120, 48112, 51604, 54320, 57133, 58976, 60140, 62080, 64505, 65968, 69440, 73720, 75392, 82460, 84196, 85120, 86912, 94240, 96224, 103208, 105245, 108640, 114266, 117952, 120280, 129010, 131936, 138880, 147440, 164920, 168392, 188480, 192448, 206416, 210490, 217280, 228532, 235904, 240560, 258020, 263872, 285665, 294880, 329840, 336784, 376960, 384896, 399931, 412832, 420980, 434560, 457064, 481120, 516040, 527744, 571330, 589760, 659680, 673568, 799862, 825664, 841960, 914128, 962240, 1032080, 1142660, 1179520, 1319360, 1347136, 1599724, 1651328, 1683920, 1828256, 1924480, 1999655, 2064160, 2285320, 2638720, 2694272, 3199448, 3367840, 3656512, 3999310, 4128320, 4570640, 6398896, 6735680, 7313024, 7998620, 8256640, 9141280, 12797792, 13471360, 15997240, 18282560, 25595584, 31994480, 36565120, 51191168, 63988960, 127977920, 255955840]

約数ペア:

[(1, 255955840), (2, 127977920), (4, 63988960), (5, 51191168), (7, 36565120), (8, 31994480), (10, 25595584), (14, 18282560), (16, 15997240), (19, 13471360), (20, 12797792), (28, 9141280), (31, 8256640), (32, 7998620), (35, 7313024), (38, 6735680), (40, 6398896), (56, 4570640), (62, 4128320), (64, 3999310), (70, 3656512), (76, 3367840), (80, 3199448), (95, 2694272), (97, 2638720), (112, 2285320), (124, 2064160), (128, 1999655), (133, 1924480), (140, 1828256), (152, 1683920), (155, 1651328), (160, 1599724), (190, 1347136), (194, 1319360), (217, 1179520), (224, 1142660), (248, 1032080), (266, 962240), (280, 914128), (304, 841960), (310, 825664), (320, 799862), (380, 673568), (388, 659680), (434, 589760), (448, 571330), (485, 527744), (496, 516040), (532, 481120), (560, 457064), (589, 434560), (608, 420980), (620, 412832), (640, 399931), (665, 384896), (679, 376960), (760, 336784), (776, 329840), (868, 294880), (896, 285665), (970, 263872), (992, 258020), (1064, 240560), (1085, 235904), (1120, 228532), (1178, 217280), (1216, 210490), (1240, 206416), (1330, 192448), (1358, 188480), (1520, 168392), (1552, 164920), (1736, 147440), (1843, 138880), (1940, 131936), (1984, 129010), (2128, 120280), (2170, 117952), (2240, 114266), (2356, 108640), (2432, 105245), (2480, 103208), (2660, 96224), (2716, 94240), (2945, 86912), (3007, 85120), (3040, 84196), (3104, 82460), (3395, 75392), (3472, 73720), (3686, 69440), (3880, 65968), (3968, 64505), (4123, 62080), (4256, 60140), (4340, 58976), (4480, 57133), (4712, 54320), (4960, 51604), (5320, 48112), (5432, 47120), (5890, 43456), (6014, 42560), (6080, 42098), (6208, 41230), (6790, 37696), (6944, 36860), (7372, 34720), (7760, 32984), (8246, 31040), (8512, 30070), (8680, 29488), (9215, 27776), (9424, 27160), (9920, 25802), (10640, 24056), (10864, 23560), (11780, 21728), (12028, 21280), (12160, 21049), (12416, 20615), (12901, 19840), (13580, 18848), (13888, 18430), (14744, 17360), (15035, 17024), (15520, 16492)]