201505990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{487}}^1$

素因数の和:781

約数の個数: 64

約数和(自身を含む): 435124224

約数和(自身を除く): 233618234

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 257, 322, 487, 514, 805, 974, 1285, 1610, 1799, 2435, 2570, 3409, 3598, 4870, 5911, 6818, 8995, 11201, 11822, 17045, 17990, 22402, 29555, 34090, 41377, 56005, 59110, 78407, 82754, 112010, 125159, 156814, 206885, 250318, 392035, 413770, 625795, 784070, 876113, 1251590, 1752226, 2878657, 4380565, 5757314, 8761130, 14393285, 20150599, 28786570, 40301198, 100752995, 201505990]

約数ペア:

[(1, 201505990), (2, 100752995), (5, 40301198), (7, 28786570), (10, 20150599), (14, 14393285), (23, 8761130), (35, 5757314), (46, 4380565), (70, 2878657), (115, 1752226), (161, 1251590), (230, 876113), (257, 784070), (322, 625795), (487, 413770), (514, 392035), (805, 250318), (974, 206885), (1285, 156814), (1610, 125159), (1799, 112010), (2435, 82754), (2570, 78407), (3409, 59110), (3598, 56005), (4870, 41377), (5911, 34090), (6818, 29555), (8995, 22402), (11201, 17990), (11822, 17045)]