28701204080

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1\times {\mathrm{10957}}^1$

素因数の和:11346

約数の個数: 80

約数和(自身を含む): 67504786560

約数和(自身を除く): 38803582480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 239, 274, 478, 548, 685, 956, 1096, 1195, 1370, 1912, 2192, 2390, 2740, 3824, 4780, 5480, 9560, 10957, 10960, 19120, 21914, 32743, 43828, 54785, 65486, 87656, 109570, 130972, 163715, 175312, 219140, 261944, 327430, 438280, 523888, 654860, 876560, 1309720, 1501109, 2618723, 2619440, 3002218, 5237446, 6004436, 7505545, 10474892, 12008872, 13093615, 15011090, 20949784, 24017744, 26187230, 30022180, 41899568, 52374460, 60044360, 104748920, 120088720, 209497840, 358765051, 717530102, 1435060204, 1793825255, 2870120408, 3587650510, 5740240816, 7175301020, 14350602040, 28701204080]

約数ペア:

[(1, 28701204080), (2, 14350602040), (4, 7175301020), (5, 5740240816), (8, 3587650510), (10, 2870120408), (16, 1793825255), (20, 1435060204), (40, 717530102), (80, 358765051), (137, 209497840), (239, 120088720), (274, 104748920), (478, 60044360), (548, 52374460), (685, 41899568), (956, 30022180), (1096, 26187230), (1195, 24017744), (1370, 20949784), (1912, 15011090), (2192, 13093615), (2390, 12008872), (2740, 10474892), (3824, 7505545), (4780, 6004436), (5480, 5237446), (9560, 3002218), (10957, 2619440), (10960, 2618723), (19120, 1501109), (21914, 1309720), (32743, 876560), (43828, 654860), (54785, 523888), (65486, 438280), (87656, 327430), (109570, 261944), (130972, 219140), (163715, 175312)]