28204785

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 62000640

約数和(自身を除く): 33795855

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 23, 35, 45, 51, 63, 69, 85, 105, 115, 119, 153, 161, 207, 229, 255, 315, 345, 357, 391, 483, 595, 687, 765, 805, 1035, 1071, 1145, 1173, 1449, 1603, 1785, 1955, 2061, 2415, 2737, 3435, 3519, 3893, 4809, 5267, 5355, 5865, 7245, 8015, 8211, 10305, 11679, 13685, 14427, 15801, 17595, 19465, 24045, 24633, 26335, 27251, 35037, 36869, 41055, 47403, 58395, 72135, 79005, 81753, 89539, 110607, 123165, 136255, 175185, 184345, 237015, 245259, 268617, 331821, 408765, 447695, 553035, 626773, 805851, 1226295, 1343085, 1659105, 1880319, 3133865, 4029255, 5640957, 9401595, 28204785]

約数ペア:

[(1, 28204785), (3, 9401595), (5, 5640957), (7, 4029255), (9, 3133865), (15, 1880319), (17, 1659105), (21, 1343085), (23, 1226295), (35, 805851), (45, 626773), (51, 553035), (63, 447695), (69, 408765), (85, 331821), (105, 268617), (115, 245259), (119, 237015), (153, 184345), (161, 175185), (207, 136255), (229, 123165), (255, 110607), (315, 89539), (345, 81753), (357, 79005), (391, 72135), (483, 58395), (595, 47403), (687, 41055), (765, 36869), (805, 35037), (1035, 27251), (1071, 26335), (1145, 24633), (1173, 24045), (1449, 19465), (1603, 17595), (1785, 15801), (1955, 14427), (2061, 13685), (2415, 11679), (2737, 10305), (3435, 8211), (3519, 8015), (3893, 7245), (4809, 5865), (5267, 5355)]