397975360

素因数分解:

$2^6\times 5^1\times {\mathrm{1243673}}^1$

素因数の和:1243690

約数の個数: 28

約数和(自身を含む): 947679588

約数和(自身を除く): 549704228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1243673, 2487346, 4974692, 6218365, 9949384, 12436730, 19898768, 24873460, 39797536, 49746920, 79595072, 99493840, 198987680, 397975360]

約数ペア:

[(1, 397975360), (2, 198987680), (4, 99493840), (5, 79595072), (8, 49746920), (10, 39797536), (16, 24873460), (20, 19898768), (32, 12436730), (40, 9949384), (64, 6218365), (80, 4974692), (160, 2487346), (320, 1243673)]