20420596

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{857}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 43819776

約数和(自身を除く): 23399180

約数列:

[1, 2, 4, 7, 14, 23, 28, 37, 46, 74, 92, 148, 161, 259, 322, 518, 644, 851, 857, 1036, 1702, 1714, 3404, 3428, 5957, 5999, 11914, 11998, 19711, 23828, 23996, 31709, 39422, 63418, 78844, 126836, 137977, 221963, 275954, 443926, 551908, 729307, 887852, 1458614, 2917228, 5105149, 10210298, 20420596]

約数ペア:

[(1, 20420596), (2, 10210298), (4, 5105149), (7, 2917228), (14, 1458614), (23, 887852), (28, 729307), (37, 551908), (46, 443926), (74, 275954), (92, 221963), (148, 137977), (161, 126836), (259, 78844), (322, 63418), (518, 39422), (644, 31709), (851, 23996), (857, 23828), (1036, 19711), (1702, 11998), (1714, 11914), (3404, 5999), (3428, 5957)]