20404470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:417

約数の個数: 64

約数和(自身を含む): 51274944

約数和(自身を除く): 30870474

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 53, 82, 106, 123, 159, 205, 246, 265, 313, 318, 410, 530, 615, 626, 795, 939, 1230, 1565, 1590, 1878, 2173, 3130, 4346, 4695, 6519, 9390, 10865, 12833, 13038, 16589, 21730, 25666, 32595, 33178, 38499, 49767, 64165, 65190, 76998, 82945, 99534, 128330, 165890, 192495, 248835, 384990, 497670, 680149, 1360298, 2040447, 3400745, 4080894, 6801490, 10202235, 20404470]

約数ペア:

[(1, 20404470), (2, 10202235), (3, 6801490), (5, 4080894), (6, 3400745), (10, 2040447), (15, 1360298), (30, 680149), (41, 497670), (53, 384990), (82, 248835), (106, 192495), (123, 165890), (159, 128330), (205, 99534), (246, 82945), (265, 76998), (313, 65190), (318, 64165), (410, 49767), (530, 38499), (615, 33178), (626, 32595), (795, 25666), (939, 21730), (1230, 16589), (1565, 13038), (1590, 12833), (1878, 10865), (2173, 9390), (3130, 6519), (4346, 4695)]