389504990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{13217}}^1$

素因数の和:13652

約数の個数: 32

約数和(自身を含む): 803231424

約数和(自身を除く): 413726434

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 421, 842, 2105, 2947, 4210, 5894, 13217, 14735, 26434, 29470, 66085, 92519, 132170, 185038, 462595, 925190, 5564357, 11128714, 27821785, 38950499, 55643570, 77900998, 194752495, 389504990]

約数ペア:

[(1, 389504990), (2, 194752495), (5, 77900998), (7, 55643570), (10, 38950499), (14, 27821785), (35, 11128714), (70, 5564357), (421, 925190), (842, 462595), (2105, 185038), (2947, 132170), (4210, 92519), (5894, 66085), (13217, 29470), (14735, 26434)]