19851840

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:197

約数の個数: 168

約数和(自身を含む): 70015608

約数和(自身を除く): 50163768

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 61, 64, 72, 80, 90, 96, 113, 120, 122, 144, 160, 180, 183, 192, 226, 240, 244, 288, 305, 320, 339, 360, 366, 452, 480, 488, 549, 565, 576, 610, 678, 720, 732, 904, 915, 960, 976, 1017, 1098, 1130, 1220, 1356, 1440, 1464, 1695, 1808, 1830, 1952, 2034, 2196, 2260, 2440, 2712, 2745, 2880, 2928, 3390, 3616, 3660, 3904, 4068, 4392, 4520, 4880, 5085, 5424, 5490, 5856, 6780, 6893, 7232, 7320, 8136, 8784, 9040, 9760, 10170, 10848, 10980, 11712, 13560, 13786, 14640, 16272, 17568, 18080, 19520, 20340, 20679, 21696, 21960, 27120, 27572, 29280, 32544, 34465, 35136, 36160, 40680, 41358, 43920, 54240, 55144, 58560, 62037, 65088, 68930, 81360, 82716, 87840, 103395, 108480, 110288, 124074, 137860, 162720, 165432, 175680, 206790, 220576, 248148, 275720, 310185, 325440, 330864, 413580, 441152, 496296, 551440, 620370, 661728, 827160, 992592, 1102880, 1240740, 1323456, 1654320, 1985184, 2205760, 2481480, 3308640, 3970368, 4962960, 6617280, 9925920, 19851840]

約数ペア:

[(1, 19851840), (2, 9925920), (3, 6617280), (4, 4962960), (5, 3970368), (6, 3308640), (8, 2481480), (9, 2205760), (10, 1985184), (12, 1654320), (15, 1323456), (16, 1240740), (18, 1102880), (20, 992592), (24, 827160), (30, 661728), (32, 620370), (36, 551440), (40, 496296), (45, 441152), (48, 413580), (60, 330864), (61, 325440), (64, 310185), (72, 275720), (80, 248148), (90, 220576), (96, 206790), (113, 175680), (120, 165432), (122, 162720), (144, 137860), (160, 124074), (180, 110288), (183, 108480), (192, 103395), (226, 87840), (240, 82716), (244, 81360), (288, 68930), (305, 65088), (320, 62037), (339, 58560), (360, 55144), (366, 54240), (452, 43920), (480, 41358), (488, 40680), (549, 36160), (565, 35136), (576, 34465), (610, 32544), (678, 29280), (720, 27572), (732, 27120), (904, 21960), (915, 21696), (960, 20679), (976, 20340), (1017, 19520), (1098, 18080), (1130, 17568), (1220, 16272), (1356, 14640), (1440, 13786), (1464, 13560), (1695, 11712), (1808, 10980), (1830, 10848), (1952, 10170), (2034, 9760), (2196, 9040), (2260, 8784), (2440, 8136), (2712, 7320), (2745, 7232), (2880, 6893), (2928, 6780), (3390, 5856), (3616, 5490), (3660, 5424), (3904, 5085), (4068, 4880), (4392, 4520)]