81537568

素因数分解:

$2^5\times 7^2\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:522

約数の個数: 72

約数和(自身を含む): 188527500

約数和(自身を除く): 106989932

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 149, 196, 224, 298, 349, 392, 596, 698, 784, 1043, 1192, 1396, 1568, 2086, 2384, 2443, 2792, 4172, 4768, 4886, 5584, 7301, 8344, 9772, 11168, 14602, 16688, 17101, 19544, 29204, 33376, 34202, 39088, 52001, 58408, 68404, 78176, 104002, 116816, 136808, 208004, 233632, 273616, 364007, 416008, 547232, 728014, 832016, 1456028, 1664032, 2548049, 2912056, 5096098, 5824112, 10192196, 11648224, 20384392, 40768784, 81537568]

約数ペア:

[(1, 81537568), (2, 40768784), (4, 20384392), (7, 11648224), (8, 10192196), (14, 5824112), (16, 5096098), (28, 2912056), (32, 2548049), (49, 1664032), (56, 1456028), (98, 832016), (112, 728014), (149, 547232), (196, 416008), (224, 364007), (298, 273616), (349, 233632), (392, 208004), (596, 136808), (698, 116816), (784, 104002), (1043, 78176), (1192, 68404), (1396, 58408), (1568, 52001), (2086, 39088), (2384, 34202), (2443, 33376), (2792, 29204), (4172, 19544), (4768, 17101), (4886, 16688), (5584, 14602), (7301, 11168), (8344, 9772)]