28767690

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:545

約数の個数: 128

約数和(自身を含む): 90685440

約数和(自身を除く): 61917750

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 54, 62, 63, 70, 90, 93, 105, 126, 135, 155, 186, 189, 210, 217, 270, 279, 310, 315, 378, 434, 465, 491, 558, 630, 651, 837, 930, 945, 982, 1085, 1302, 1395, 1473, 1674, 1890, 1953, 2170, 2455, 2790, 2946, 3255, 3437, 3906, 4185, 4419, 4910, 5859, 6510, 6874, 7365, 8370, 8838, 9765, 10311, 11718, 13257, 14730, 15221, 17185, 19530, 20622, 22095, 26514, 29295, 30442, 30933, 34370, 44190, 45663, 51555, 58590, 61866, 66285, 76105, 91326, 92799, 103110, 106547, 132570, 136989, 152210, 154665, 185598, 213094, 228315, 273978, 309330, 319641, 410967, 456630, 463995, 532735, 639282, 684945, 821934, 927990, 958923, 1065470, 1369890, 1598205, 1917846, 2054835, 2876769, 3196410, 4109670, 4794615, 5753538, 9589230, 14383845, 28767690]

約数ペア:

[(1, 28767690), (2, 14383845), (3, 9589230), (5, 5753538), (6, 4794615), (7, 4109670), (9, 3196410), (10, 2876769), (14, 2054835), (15, 1917846), (18, 1598205), (21, 1369890), (27, 1065470), (30, 958923), (31, 927990), (35, 821934), (42, 684945), (45, 639282), (54, 532735), (62, 463995), (63, 456630), (70, 410967), (90, 319641), (93, 309330), (105, 273978), (126, 228315), (135, 213094), (155, 185598), (186, 154665), (189, 152210), (210, 136989), (217, 132570), (270, 106547), (279, 103110), (310, 92799), (315, 91326), (378, 76105), (434, 66285), (465, 61866), (491, 58590), (558, 51555), (630, 45663), (651, 44190), (837, 34370), (930, 30933), (945, 30442), (982, 29295), (1085, 26514), (1302, 22095), (1395, 20622), (1473, 19530), (1674, 17185), (1890, 15221), (1953, 14730), (2170, 13257), (2455, 11718), (2790, 10311), (2946, 9765), (3255, 8838), (3437, 8370), (3906, 7365), (4185, 6874), (4419, 6510), (4910, 5859)]