28998130980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:280

約数の個数: 768

約数和(自身を含む): 110981283840

約数和(自身を除く): 81983152860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 19, 20, 21, 26, 28, 30, 31, 35, 38, 39, 42, 52, 57, 60, 62, 65, 70, 71, 76, 78, 84, 91, 93, 95, 105, 114, 124, 127, 130, 133, 140, 142, 155, 156, 182, 186, 190, 195, 210, 213, 217, 228, 247, 254, 260, 266, 273, 284, 285, 310, 355, 364, 372, 380, 381, 390, 399, 403, 420, 426, 434, 455, 465, 494, 497, 508, 532, 546, 570, 589, 620, 635, 651, 665, 710, 741, 762, 780, 798, 806, 852, 868, 889, 910, 923, 930, 988, 994, 1065, 1085, 1092, 1140, 1178, 1209, 1235, 1270, 1302, 1330, 1349, 1365, 1420, 1482, 1491, 1524, 1596, 1612, 1651, 1729, 1767, 1778, 1820, 1846, 1860, 1905, 1988, 1995, 2015, 2130, 2170, 2201, 2356, 2413, 2418, 2470, 2485, 2540, 2604, 2660, 2667, 2698, 2730, 2769, 2821, 2945, 2964, 2982, 3255, 3302, 3458, 3534, 3556, 3692, 3705, 3810, 3937, 3990, 4030, 4047, 4123, 4260, 4340, 4402, 4445, 4615, 4826, 4836, 4940, 4953, 4970, 5187, 5334, 5396, 5460, 5538, 5642, 5890, 5964, 6045, 6461, 6510, 6603, 6604, 6745, 6916, 7068, 7239, 7410, 7455, 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約数ペア:

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