161987210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2963}}^1$

素因数の和:3059

約数の個数: 64

約数和(自身を含む): 368769024

約数和(自身を除く): 206781814

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 71, 77, 110, 142, 154, 355, 385, 497, 710, 770, 781, 994, 1562, 2485, 2963, 3905, 4970, 5467, 5926, 7810, 10934, 14815, 20741, 27335, 29630, 32593, 41482, 54670, 65186, 103705, 162965, 207410, 210373, 228151, 325930, 420746, 456302, 1051865, 1140755, 1472611, 2103730, 2281510, 2314103, 2945222, 4628206, 7363055, 11570515, 14726110, 16198721, 23141030, 32397442, 80993605, 161987210]

約数ペア:

[(1, 161987210), (2, 80993605), (5, 32397442), (7, 23141030), (10, 16198721), (11, 14726110), (14, 11570515), (22, 7363055), (35, 4628206), (55, 2945222), (70, 2314103), (71, 2281510), (77, 2103730), (110, 1472611), (142, 1140755), (154, 1051865), (355, 456302), (385, 420746), (497, 325930), (710, 228151), (770, 210373), (781, 207410), (994, 162965), (1562, 103705), (2485, 65186), (2963, 54670), (3905, 41482), (4970, 32593), (5467, 29630), (5926, 27335), (7810, 20741), (10934, 14815)]