398265838

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{619}}^1$

素因数の和:912

約数の個数: 32

約数和(自身を含む): 636387840

約数和(自身を除く): 238122002

約数列:

[1, 2, 23, 46, 71, 142, 197, 394, 619, 1238, 1633, 3266, 4531, 9062, 13987, 14237, 27974, 28474, 43949, 87898, 121943, 243886, 321701, 643402, 1010827, 2021654, 2804689, 5609378, 8657953, 17315906, 199132919, 398265838]

約数ペア:

[(1, 398265838), (2, 199132919), (23, 17315906), (46, 8657953), (71, 5609378), (142, 2804689), (197, 2021654), (394, 1010827), (619, 643402), (1238, 321701), (1633, 243886), (3266, 121943), (4531, 87898), (9062, 43949), (13987, 28474), (14237, 27974)]