18778760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:116

約数の個数: 192

約数和(自身を含む): 58605120

約数和(自身を除く): 39826360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 49, 52, 55, 56, 65, 67, 70, 77, 88, 91, 98, 104, 110, 130, 134, 140, 143, 154, 182, 196, 220, 245, 260, 268, 280, 286, 308, 335, 364, 385, 392, 440, 455, 469, 490, 520, 536, 539, 572, 616, 637, 670, 715, 728, 737, 770, 871, 910, 938, 980, 1001, 1078, 1144, 1274, 1340, 1430, 1474, 1540, 1742, 1820, 1876, 1960, 2002, 2156, 2345, 2548, 2680, 2695, 2860, 2948, 3080, 3185, 3283, 3484, 3640, 3685, 3752, 4004, 4312, 4355, 4690, 5005, 5096, 5159, 5390, 5720, 5896, 6097, 6370, 6566, 6968, 7007, 7370, 8008, 8710, 9380, 9581, 10010, 10318, 10780, 12194, 12740, 13132, 14014, 14740, 16415, 17420, 18760, 19162, 20020, 20636, 21560, 24388, 25480, 25795, 26264, 28028, 29480, 30485, 32830, 34840, 35035, 36113, 38324, 40040, 41272, 42679, 47905, 48776, 51590, 56056, 60970, 65660, 67067, 70070, 72226, 76648, 85358, 95810, 103180, 121940, 131320, 134134, 140140, 144452, 170716, 180565, 191620, 206360, 213395, 243880, 268268, 280280, 288904, 335335, 341432, 361130, 383240, 426790, 469469, 536536, 670670, 722260, 853580, 938938, 1341340, 1444520, 1707160, 1877876, 2347345, 2682680, 3755752, 4694690, 9389380, 18778760]

約数ペア:

[(1, 18778760), (2, 9389380), (4, 4694690), (5, 3755752), (7, 2682680), (8, 2347345), (10, 1877876), (11, 1707160), (13, 1444520), (14, 1341340), (20, 938938), (22, 853580), (26, 722260), (28, 670670), (35, 536536), (40, 469469), (44, 426790), (49, 383240), (52, 361130), (55, 341432), (56, 335335), (65, 288904), (67, 280280), (70, 268268), (77, 243880), (88, 213395), (91, 206360), (98, 191620), (104, 180565), (110, 170716), (130, 144452), (134, 140140), (140, 134134), (143, 131320), (154, 121940), (182, 103180), (196, 95810), (220, 85358), (245, 76648), (260, 72226), (268, 70070), (280, 67067), (286, 65660), (308, 60970), (335, 56056), (364, 51590), (385, 48776), (392, 47905), (440, 42679), (455, 41272), (469, 40040), (490, 38324), (520, 36113), (536, 35035), (539, 34840), (572, 32830), (616, 30485), (637, 29480), (670, 28028), (715, 26264), (728, 25795), (737, 25480), (770, 24388), (871, 21560), (910, 20636), (938, 20020), (980, 19162), (1001, 18760), (1078, 17420), (1144, 16415), (1274, 14740), (1340, 14014), (1430, 13132), (1474, 12740), (1540, 12194), (1742, 10780), (1820, 10318), (1876, 10010), (1960, 9581), (2002, 9380), (2156, 8710), (2345, 8008), (2548, 7370), (2680, 7007), (2695, 6968), (2860, 6566), (2948, 6370), (3080, 6097), (3185, 5896), (3283, 5720), (3484, 5390), (3640, 5159), (3685, 5096), (3752, 5005), (4004, 4690), (4312, 4355)]