80845740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:312

約数の個数: 144

約数和(自身を含む): 257275200

約数和(自身を除く): 176429460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 61, 74, 90, 111, 122, 148, 180, 183, 185, 199, 222, 244, 305, 333, 366, 370, 398, 444, 549, 555, 597, 610, 666, 732, 740, 796, 915, 995, 1098, 1110, 1194, 1220, 1332, 1665, 1791, 1830, 1990, 2196, 2220, 2257, 2388, 2745, 2985, 3330, 3582, 3660, 3980, 4514, 5490, 5970, 6660, 6771, 7164, 7363, 8955, 9028, 10980, 11285, 11940, 12139, 13542, 14726, 17910, 20313, 22089, 22570, 24278, 27084, 29452, 33855, 35820, 36417, 36815, 40626, 44178, 45140, 48556, 60695, 66267, 67710, 72834, 73630, 81252, 88356, 101565, 109251, 110445, 121390, 132534, 135420, 145668, 147260, 182085, 203130, 218502, 220890, 242780, 265068, 331335, 364170, 406260, 437004, 441780, 449143, 546255, 662670, 728340, 898286, 1092510, 1325340, 1347429, 1796572, 2185020, 2245715, 2694858, 4042287, 4491430, 5389716, 6737145, 8084574, 8982860, 13474290, 16169148, 20211435, 26948580, 40422870, 80845740]

約数ペア:

[(1, 80845740), (2, 40422870), (3, 26948580), (4, 20211435), (5, 16169148), (6, 13474290), (9, 8982860), (10, 8084574), (12, 6737145), (15, 5389716), (18, 4491430), (20, 4042287), (30, 2694858), (36, 2245715), (37, 2185020), (45, 1796572), (60, 1347429), (61, 1325340), (74, 1092510), (90, 898286), (111, 728340), (122, 662670), (148, 546255), (180, 449143), (183, 441780), (185, 437004), (199, 406260), (222, 364170), (244, 331335), (305, 265068), (333, 242780), (366, 220890), (370, 218502), (398, 203130), (444, 182085), (549, 147260), (555, 145668), (597, 135420), (610, 132534), (666, 121390), (732, 110445), (740, 109251), (796, 101565), (915, 88356), (995, 81252), (1098, 73630), (1110, 72834), (1194, 67710), (1220, 66267), (1332, 60695), (1665, 48556), (1791, 45140), (1830, 44178), (1990, 40626), (2196, 36815), (2220, 36417), (2257, 35820), (2388, 33855), (2745, 29452), (2985, 27084), (3330, 24278), (3582, 22570), (3660, 22089), (3980, 20313), (4514, 17910), (5490, 14726), (5970, 13542), (6660, 12139), (6771, 11940), (7164, 11285), (7363, 10980), (8955, 9028)]