187911720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:320

約数の個数: 192

約数和(自身を含む): 638352000

約数和(自身を除く): 450440280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 43, 45, 60, 61, 72, 86, 90, 120, 122, 129, 172, 180, 183, 199, 215, 244, 258, 305, 344, 360, 366, 387, 398, 430, 488, 516, 549, 597, 610, 645, 732, 774, 796, 860, 915, 995, 1032, 1098, 1194, 1220, 1290, 1464, 1548, 1592, 1720, 1791, 1830, 1935, 1990, 2196, 2388, 2440, 2580, 2623, 2745, 2985, 3096, 3582, 3660, 3870, 3980, 4392, 4776, 5160, 5246, 5490, 5970, 7164, 7320, 7740, 7869, 7960, 8557, 8955, 10492, 10980, 11940, 12139, 13115, 14328, 15480, 15738, 17114, 17910, 20984, 21960, 23607, 23880, 24278, 25671, 26230, 31476, 34228, 35820, 36417, 39345, 42785, 47214, 48556, 51342, 52460, 60695, 62952, 68456, 71640, 72834, 77013, 78690, 85570, 94428, 97112, 102684, 104920, 109251, 118035, 121390, 128355, 145668, 154026, 157380, 171140, 182085, 188856, 205368, 218502, 236070, 242780, 256710, 291336, 308052, 314760, 342280, 364170, 385065, 437004, 472140, 485560, 513420, 521977, 546255, 616104, 728340, 770130, 874008, 944280, 1026840, 1043954, 1092510, 1456680, 1540260, 1565931, 2087908, 2185020, 2609885, 3080520, 3131862, 4175816, 4370040, 4697793, 5219770, 6263724, 7829655, 9395586, 10439540, 12527448, 15659310, 18791172, 20879080, 23488965, 31318620, 37582344, 46977930, 62637240, 93955860, 187911720]

約数ペア:

[(1, 187911720), (2, 93955860), (3, 62637240), (4, 46977930), (5, 37582344), (6, 31318620), (8, 23488965), (9, 20879080), (10, 18791172), (12, 15659310), (15, 12527448), (18, 10439540), (20, 9395586), (24, 7829655), (30, 6263724), (36, 5219770), (40, 4697793), (43, 4370040), (45, 4175816), (60, 3131862), (61, 3080520), (72, 2609885), (86, 2185020), (90, 2087908), (120, 1565931), (122, 1540260), (129, 1456680), (172, 1092510), (180, 1043954), (183, 1026840), (199, 944280), (215, 874008), (244, 770130), (258, 728340), (305, 616104), (344, 546255), (360, 521977), (366, 513420), (387, 485560), (398, 472140), (430, 437004), (488, 385065), (516, 364170), (549, 342280), (597, 314760), (610, 308052), (645, 291336), (732, 256710), (774, 242780), (796, 236070), (860, 218502), (915, 205368), (995, 188856), (1032, 182085), (1098, 171140), (1194, 157380), (1220, 154026), (1290, 145668), (1464, 128355), (1548, 121390), (1592, 118035), (1720, 109251), (1791, 104920), (1830, 102684), (1935, 97112), (1990, 94428), (2196, 85570), (2388, 78690), (2440, 77013), (2580, 72834), (2623, 71640), (2745, 68456), (2985, 62952), (3096, 60695), (3582, 52460), (3660, 51342), (3870, 48556), (3980, 47214), (4392, 42785), (4776, 39345), (5160, 36417), (5246, 35820), (5490, 34228), (5970, 31476), (7164, 26230), (7320, 25671), (7740, 24278), (7869, 23880), (7960, 23607), (8557, 21960), (8955, 20984), (10492, 17910), (10980, 17114), (11940, 15738), (12139, 15480), (13115, 14328)]