247087360

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:544

約数の個数: 144

約数和(自身を含む): 659312640

約数和(自身を除く): 412225280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 479, 496, 520, 620, 640, 806, 832, 958, 992, 1040, 1240, 1280, 1612, 1664, 1916, 1984, 2015, 2080, 2395, 2480, 3224, 3328, 3832, 3968, 4030, 4160, 4790, 4960, 6227, 6448, 7664, 7936, 8060, 8320, 9580, 9920, 12454, 12896, 14849, 15328, 16120, 16640, 19160, 19840, 24908, 25792, 29698, 30656, 31135, 32240, 38320, 39680, 49816, 51584, 59396, 61312, 62270, 64480, 74245, 76640, 99632, 103168, 118792, 122624, 124540, 128960, 148490, 153280, 193037, 199264, 237584, 249080, 257920, 296980, 306560, 386074, 398528, 475168, 498160, 515840, 593960, 613120, 772148, 797056, 950336, 965185, 996320, 1187920, 1544296, 1594112, 1900672, 1930370, 1992640, 2375840, 3088592, 3801344, 3860740, 3985280, 4751680, 6177184, 7721480, 7970560, 9503360, 12354368, 15442960, 19006720, 24708736, 30885920, 49417472, 61771840, 123543680, 247087360]

約数ペア:

[(1, 247087360), (2, 123543680), (4, 61771840), (5, 49417472), (8, 30885920), (10, 24708736), (13, 19006720), (16, 15442960), (20, 12354368), (26, 9503360), (31, 7970560), (32, 7721480), (40, 6177184), (52, 4751680), (62, 3985280), (64, 3860740), (65, 3801344), (80, 3088592), (104, 2375840), (124, 1992640), (128, 1930370), (130, 1900672), (155, 1594112), (160, 1544296), (208, 1187920), (248, 996320), (256, 965185), (260, 950336), (310, 797056), (320, 772148), (403, 613120), (416, 593960), (479, 515840), (496, 498160), (520, 475168), (620, 398528), (640, 386074), (806, 306560), (832, 296980), (958, 257920), (992, 249080), (1040, 237584), (1240, 199264), (1280, 193037), (1612, 153280), (1664, 148490), (1916, 128960), (1984, 124540), (2015, 122624), (2080, 118792), (2395, 103168), (2480, 99632), (3224, 76640), (3328, 74245), (3832, 64480), (3968, 62270), (4030, 61312), (4160, 59396), (4790, 51584), (4960, 49816), (6227, 39680), (6448, 38320), (7664, 32240), (7936, 31135), (8060, 30656), (8320, 29698), (9580, 25792), (9920, 24908), (12454, 19840), (12896, 19160), (14849, 16640), (15328, 16120)]