19155780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:706

約数の個数: 144

約数和(自身を含む): 69398784

約数和(自身を除く): 50243004

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, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 661, 690, 805, 828, 966, 1035, 1260, 1322, 1380, 1449, 1610, 1932, 1983, 2070, 2415, 2644, 2898, 3220, 3305, 3966, 4140, 4627, 4830, 5796, 5949, 6610, 7245, 7932, 9254, 9660, 9915, 11898, 13220, 13881, 14490, 15203, 18508, 19830, 23135, 23796, 27762, 28980, 29745, 30406, 39660, 41643, 45609, 46270, 55524, 59490, 60812, 69405, 76015, 83286, 91218, 92540, 106421, 118980, 136827, 138810, 152030, 166572, 182436, 208215, 212842, 228045, 273654, 277620, 304060, 319263, 416430, 425684, 456090, 532105, 547308, 638526, 684135, 832860, 912180, 957789, 1064210, 1277052, 1368270, 1596315, 1915578, 2128420, 2736540, 3192630, 3831156, 4788945, 6385260, 9577890, 19155780]

約数ペア:

[(1, 19155780), (2, 9577890), (3, 6385260), (4, 4788945), (5, 3831156), (6, 3192630), (7, 2736540), (9, 2128420), (10, 1915578), (12, 1596315), (14, 1368270), (15, 1277052), (18, 1064210), (20, 957789), (21, 912180), (23, 832860), (28, 684135), (30, 638526), (35, 547308), (36, 532105), (42, 456090), (45, 425684), (46, 416430), (60, 319263), (63, 304060), (69, 277620), (70, 273654), (84, 228045), (90, 212842), (92, 208215), (105, 182436), (115, 166572), (126, 152030), (138, 138810), (140, 136827), (161, 118980), (180, 106421), (207, 92540), (210, 91218), (230, 83286), (252, 76015), (276, 69405), (315, 60812), (322, 59490), (345, 55524), (414, 46270), (420, 45609), (460, 41643), (483, 39660), (630, 30406), (644, 29745), (661, 28980), (690, 27762), (805, 23796), (828, 23135), (966, 19830), (1035, 18508), (1260, 15203), (1322, 14490), (1380, 13881), (1449, 13220), (1610, 11898), (1932, 9915), (1983, 9660), (2070, 9254), (2415, 7932), (2644, 7245), (2898, 6610), (3220, 5949), (3305, 5796), (3966, 4830), (4140, 4627)]