19677420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:149

約数の個数: 216

約数和(自身を含む): 73198944

約数和(自身を除く): 53521524

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 49, 60, 63, 69, 70, 84, 90, 92, 97, 98, 105, 115, 126, 138, 140, 147, 161, 180, 194, 196, 207, 210, 230, 245, 252, 276, 291, 294, 315, 322, 345, 388, 414, 420, 441, 460, 483, 485, 490, 582, 588, 630, 644, 679, 690, 735, 805, 828, 873, 882, 966, 970, 980, 1035, 1127, 1164, 1260, 1358, 1380, 1449, 1455, 1470, 1610, 1746, 1764, 1932, 1940, 2037, 2070, 2205, 2231, 2254, 2415, 2716, 2898, 2910, 2940, 3220, 3381, 3395, 3492, 4074, 4140, 4365, 4410, 4462, 4508, 4753, 4830, 5635, 5796, 5820, 6111, 6693, 6762, 6790, 7245, 8148, 8730, 8820, 8924, 9506, 9660, 10143, 10185, 11155, 11270, 12222, 13386, 13524, 13580, 14259, 14490, 15617, 16905, 17460, 19012, 20079, 20286, 20370, 22310, 22540, 23765, 24444, 26772, 28518, 28980, 30555, 31234, 33465, 33810, 40158, 40572, 40740, 42777, 44620, 46851, 47530, 50715, 57036, 61110, 62468, 66930, 67620, 71295, 78085, 80316, 85554, 93702, 95060, 100395, 101430, 109319, 122220, 133860, 140553, 142590, 156170, 171108, 187404, 200790, 202860, 213885, 218638, 234255, 281106, 285180, 312340, 327957, 401580, 427770, 437276, 468510, 546595, 562212, 655914, 702765, 855540, 937020, 983871, 1093190, 1311828, 1405530, 1639785, 1967742, 2186380, 2811060, 3279570, 3935484, 4919355, 6559140, 9838710, 19677420]

約数ペア:

[(1, 19677420), (2, 9838710), (3, 6559140), (4, 4919355), (5, 3935484), (6, 3279570), (7, 2811060), (9, 2186380), (10, 1967742), (12, 1639785), (14, 1405530), (15, 1311828), (18, 1093190), (20, 983871), (21, 937020), (23, 855540), (28, 702765), (30, 655914), (35, 562212), (36, 546595), (42, 468510), (45, 437276), (46, 427770), (49, 401580), (60, 327957), (63, 312340), (69, 285180), (70, 281106), (84, 234255), (90, 218638), (92, 213885), (97, 202860), (98, 200790), (105, 187404), (115, 171108), (126, 156170), (138, 142590), (140, 140553), (147, 133860), (161, 122220), (180, 109319), (194, 101430), (196, 100395), (207, 95060), (210, 93702), (230, 85554), (245, 80316), (252, 78085), (276, 71295), (291, 67620), (294, 66930), (315, 62468), (322, 61110), (345, 57036), (388, 50715), (414, 47530), (420, 46851), (441, 44620), (460, 42777), (483, 40740), (485, 40572), (490, 40158), (582, 33810), (588, 33465), (630, 31234), (644, 30555), (679, 28980), (690, 28518), (735, 26772), (805, 24444), (828, 23765), (873, 22540), (882, 22310), (966, 20370), (970, 20286), (980, 20079), (1035, 19012), (1127, 17460), (1164, 16905), (1260, 15617), (1358, 14490), (1380, 14259), (1449, 13580), (1455, 13524), (1470, 13386), (1610, 12222), (1746, 11270), (1764, 11155), (1932, 10185), (1940, 10143), (2037, 9660), (2070, 9506), (2205, 8924), (2231, 8820), (2254, 8730), (2415, 8148), (2716, 7245), (2898, 6790), (2910, 6762), (2940, 6693), (3220, 6111), (3381, 5820), (3395, 5796), (3492, 5635), (4074, 4830), (4140, 4753), (4365, 4508), (4410, 4462)]