28553910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:338

約数の個数: 128

約数和(自身を含む): 87588864

約数和(自身を除く): 59034954

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 47, 55, 66, 70, 77, 94, 105, 110, 141, 154, 165, 210, 231, 235, 263, 282, 329, 330, 385, 462, 470, 517, 526, 658, 705, 770, 789, 987, 1034, 1155, 1315, 1410, 1551, 1578, 1645, 1841, 1974, 2310, 2585, 2630, 2893, 3102, 3290, 3619, 3682, 3945, 4935, 5170, 5523, 5786, 7238, 7755, 7890, 8679, 9205, 9870, 10857, 11046, 12361, 14465, 15510, 17358, 18095, 18410, 20251, 21714, 24722, 27615, 28930, 36190, 37083, 40502, 43395, 54285, 55230, 60753, 61805, 74166, 86527, 86790, 101255, 108570, 121506, 123610, 135971, 173054, 185415, 202510, 259581, 271942, 303765, 370830, 407913, 432635, 519162, 607530, 679855, 815826, 865270, 951797, 1297905, 1359710, 1903594, 2039565, 2595810, 2855391, 4079130, 4758985, 5710782, 9517970, 14276955, 28553910]

約数ペア:

[(1, 28553910), (2, 14276955), (3, 9517970), (5, 5710782), (6, 4758985), (7, 4079130), (10, 2855391), (11, 2595810), (14, 2039565), (15, 1903594), (21, 1359710), (22, 1297905), (30, 951797), (33, 865270), (35, 815826), (42, 679855), (47, 607530), (55, 519162), (66, 432635), (70, 407913), (77, 370830), (94, 303765), (105, 271942), (110, 259581), (141, 202510), (154, 185415), (165, 173054), (210, 135971), (231, 123610), (235, 121506), (263, 108570), (282, 101255), (329, 86790), (330, 86527), (385, 74166), (462, 61805), (470, 60753), (517, 55230), (526, 54285), (658, 43395), (705, 40502), (770, 37083), (789, 36190), (987, 28930), (1034, 27615), (1155, 24722), (1315, 21714), (1410, 20251), (1551, 18410), (1578, 18095), (1645, 17358), (1841, 15510), (1974, 14465), (2310, 12361), (2585, 11046), (2630, 10857), (2893, 9870), (3102, 9205), (3290, 8679), (3619, 7890), (3682, 7755), (3945, 7238), (4935, 5786), (5170, 5523)]