28422560

素因数分解:

$2^5\times 5^1\times {\mathrm{349}}^1\times {\mathrm{509}}^1$

素因数の和:873

約数の個数: 48

約数和(自身を含む): 67473000

約数和(自身を除く): 39050440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 349, 509, 698, 1018, 1396, 1745, 2036, 2545, 2792, 3490, 4072, 5090, 5584, 6980, 8144, 10180, 11168, 13960, 16288, 20360, 27920, 40720, 55840, 81440, 177641, 355282, 710564, 888205, 1421128, 1776410, 2842256, 3552820, 5684512, 7105640, 14211280, 28422560]

約数ペア:

[(1, 28422560), (2, 14211280), (4, 7105640), (5, 5684512), (8, 3552820), (10, 2842256), (16, 1776410), (20, 1421128), (32, 888205), (40, 710564), (80, 355282), (160, 177641), (349, 81440), (509, 55840), (698, 40720), (1018, 27920), (1396, 20360), (1745, 16288), (2036, 13960), (2545, 11168), (2792, 10180), (3490, 8144), (4072, 6980), (5090, 5584)]