399876670

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{506173}}^1$

素因数の和:506259

約数の個数: 16

約数和(自身を含む): 728890560

約数和(自身を除く): 329013890

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 506173, 1012346, 2530865, 5061730, 39987667, 79975334, 199938335, 399876670]

約数ペア:

[(1, 399876670), (2, 199938335), (5, 79975334), (10, 39987667), (79, 5061730), (158, 2530865), (395, 1012346), (790, 506173)]