28147880

素因数分解:

$2^3\times 5^1\times {\mathrm{503}}^1\times {\mathrm{1399}}^1$

素因数の和:1913

約数の個数: 32

約数和(自身を含む): 63504000

約数和(自身を除く): 35356120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503, 1006, 1399, 2012, 2515, 2798, 4024, 5030, 5596, 6995, 10060, 11192, 13990, 20120, 27980, 55960, 703697, 1407394, 2814788, 3518485, 5629576, 7036970, 14073940, 28147880]

約数ペア:

[(1, 28147880), (2, 14073940), (4, 7036970), (5, 5629576), (8, 3518485), (10, 2814788), (20, 1407394), (40, 703697), (503, 55960), (1006, 27980), (1399, 20120), (2012, 13990), (2515, 11192), (2798, 10060), (4024, 6995), (5030, 5596)]