18972240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:537

約数の個数: 160

約数和(自身を含む): 70281216

約数和(自身を除く): 51308976

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 491, 552, 560, 644, 690, 805, 840, 920, 966, 982, 1104, 1288, 1380, 1473, 1610, 1680, 1840, 1932, 1964, 2415, 2455, 2576, 2760, 2946, 3220, 3437, 3864, 3928, 4830, 4910, 5520, 5892, 6440, 6874, 7365, 7728, 7856, 9660, 9820, 10311, 11293, 11784, 12880, 13748, 14730, 17185, 19320, 19640, 20622, 22586, 23568, 27496, 29460, 33879, 34370, 38640, 39280, 41244, 45172, 51555, 54992, 56465, 58920, 67758, 68740, 79051, 82488, 90344, 103110, 112930, 117840, 135516, 137480, 158102, 164976, 169395, 180688, 206220, 225860, 237153, 271032, 274960, 316204, 338790, 395255, 412440, 451720, 474306, 542064, 632408, 677580, 790510, 824880, 903440, 948612, 1185765, 1264816, 1355160, 1581020, 1897224, 2371530, 2710320, 3162040, 3794448, 4743060, 6324080, 9486120, 18972240]

約数ペア:

[(1, 18972240), (2, 9486120), (3, 6324080), (4, 4743060), (5, 3794448), (6, 3162040), (7, 2710320), (8, 2371530), (10, 1897224), (12, 1581020), (14, 1355160), (15, 1264816), (16, 1185765), (20, 948612), (21, 903440), (23, 824880), (24, 790510), (28, 677580), (30, 632408), (35, 542064), (40, 474306), (42, 451720), (46, 412440), (48, 395255), (56, 338790), (60, 316204), (69, 274960), (70, 271032), (80, 237153), (84, 225860), (92, 206220), (105, 180688), (112, 169395), (115, 164976), (120, 158102), (138, 137480), (140, 135516), (161, 117840), (168, 112930), (184, 103110), (210, 90344), (230, 82488), (240, 79051), (276, 68740), (280, 67758), (322, 58920), (336, 56465), (345, 54992), (368, 51555), (420, 45172), (460, 41244), (483, 39280), (491, 38640), (552, 34370), (560, 33879), (644, 29460), (690, 27496), (805, 23568), (840, 22586), (920, 20622), (966, 19640), (982, 19320), (1104, 17185), (1288, 14730), (1380, 13748), (1473, 12880), (1610, 11784), (1680, 11293), (1840, 10311), (1932, 9820), (1964, 9660), (2415, 7856), (2455, 7728), (2576, 7365), (2760, 6874), (2946, 6440), (3220, 5892), (3437, 5520), (3864, 4910), (3928, 4830)]