219720380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{251}}^1$

素因数の和:467

約数の個数: 96

約数和(自身を含む): 530385408

約数和(自身を除く): 310665028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 173, 220, 230, 251, 253, 346, 460, 502, 506, 692, 865, 1004, 1012, 1255, 1265, 1730, 1903, 2510, 2530, 2761, 3460, 3806, 3979, 5020, 5060, 5522, 5773, 7612, 7958, 9515, 11044, 11546, 13805, 15916, 19030, 19895, 23092, 27610, 28865, 38060, 39790, 43423, 43769, 55220, 57730, 63503, 79580, 86846, 87538, 115460, 127006, 173692, 175076, 217115, 218845, 254012, 317515, 434230, 437690, 477653, 635030, 868460, 875380, 955306, 998729, 1270060, 1910612, 1997458, 2388265, 3994916, 4776530, 4993645, 9553060, 9987290, 10986019, 19974580, 21972038, 43944076, 54930095, 109860190, 219720380]

約数ペア:

[(1, 219720380), (2, 109860190), (4, 54930095), (5, 43944076), (10, 21972038), (11, 19974580), (20, 10986019), (22, 9987290), (23, 9553060), (44, 4993645), (46, 4776530), (55, 3994916), (92, 2388265), (110, 1997458), (115, 1910612), (173, 1270060), (220, 998729), (230, 955306), (251, 875380), (253, 868460), (346, 635030), (460, 477653), (502, 437690), (506, 434230), (692, 317515), (865, 254012), (1004, 218845), (1012, 217115), (1255, 175076), (1265, 173692), (1730, 127006), (1903, 115460), (2510, 87538), (2530, 86846), (2761, 79580), (3460, 63503), (3806, 57730), (3979, 55220), (5020, 43769), (5060, 43423), (5522, 39790), (5773, 38060), (7612, 28865), (7958, 27610), (9515, 23092), (11044, 19895), (11546, 19030), (13805, 15916)]