20916390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{263}}^1$

素因数の和:525

約数の個数: 64

約数和(自身を含む): 55199232

約数和(自身を除く): 34282842

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 241, 263, 330, 482, 526, 723, 789, 1205, 1315, 1446, 1578, 2410, 2630, 2651, 2893, 3615, 3945, 5302, 5786, 7230, 7890, 7953, 8679, 13255, 14465, 15906, 17358, 26510, 28930, 39765, 43395, 63383, 79530, 86790, 126766, 190149, 316915, 380298, 633830, 697213, 950745, 1394426, 1901490, 2091639, 3486065, 4183278, 6972130, 10458195, 20916390]

約数ペア:

[(1, 20916390), (2, 10458195), (3, 6972130), (5, 4183278), (6, 3486065), (10, 2091639), (11, 1901490), (15, 1394426), (22, 950745), (30, 697213), (33, 633830), (55, 380298), (66, 316915), (110, 190149), (165, 126766), (241, 86790), (263, 79530), (330, 63383), (482, 43395), (526, 39765), (723, 28930), (789, 26510), (1205, 17358), (1315, 15906), (1446, 14465), (1578, 13255), (2410, 8679), (2630, 7953), (2651, 7890), (2893, 7230), (3615, 5786), (3945, 5302)]