180255880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:407

約数の個数: 128

約数和(自身を含む): 487296000

約数和(自身を除く): 307040120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 79, 116, 140, 145, 158, 203, 232, 280, 281, 290, 316, 395, 406, 553, 562, 580, 632, 790, 812, 1015, 1106, 1124, 1160, 1405, 1580, 1624, 1967, 2030, 2212, 2248, 2291, 2765, 2810, 3160, 3934, 4060, 4424, 4582, 5530, 5620, 7868, 8120, 8149, 9164, 9835, 11060, 11240, 11455, 15736, 16037, 16298, 18328, 19670, 22120, 22199, 22910, 32074, 32596, 39340, 40745, 44398, 45820, 57043, 64148, 65192, 78680, 80185, 81490, 88796, 91640, 110995, 114086, 128296, 155393, 160370, 162980, 177592, 221990, 228172, 285215, 310786, 320740, 325960, 443980, 456344, 570430, 621572, 641480, 643771, 776965, 887960, 1140860, 1243144, 1287542, 1553930, 2281720, 2575084, 3107860, 3218855, 4506397, 5150168, 6215720, 6437710, 9012794, 12875420, 18025588, 22531985, 25750840, 36051176, 45063970, 90127940, 180255880]

約数ペア:

[(1, 180255880), (2, 90127940), (4, 45063970), (5, 36051176), (7, 25750840), (8, 22531985), (10, 18025588), (14, 12875420), (20, 9012794), (28, 6437710), (29, 6215720), (35, 5150168), (40, 4506397), (56, 3218855), (58, 3107860), (70, 2575084), (79, 2281720), (116, 1553930), (140, 1287542), (145, 1243144), (158, 1140860), (203, 887960), (232, 776965), (280, 643771), (281, 641480), (290, 621572), (316, 570430), (395, 456344), (406, 443980), (553, 325960), (562, 320740), (580, 310786), (632, 285215), (790, 228172), (812, 221990), (1015, 177592), (1106, 162980), (1124, 160370), (1160, 155393), (1405, 128296), (1580, 114086), (1624, 110995), (1967, 91640), (2030, 88796), (2212, 81490), (2248, 80185), (2291, 78680), (2765, 65192), (2810, 64148), (3160, 57043), (3934, 45820), (4060, 44398), (4424, 40745), (4582, 39340), (5530, 32596), (5620, 32074), (7868, 22910), (8120, 22199), (8149, 22120), (9164, 19670), (9835, 18328), (11060, 16298), (11240, 16037), (11455, 15736)]