28250145

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 63258624

約数和(自身を除く): 35008479

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 31, 33, 35, 45, 55, 63, 77, 93, 99, 105, 155, 165, 217, 231, 263, 279, 315, 341, 385, 465, 495, 651, 693, 789, 1023, 1085, 1155, 1315, 1395, 1705, 1841, 1953, 2367, 2387, 2893, 3069, 3255, 3465, 3945, 5115, 5523, 7161, 8153, 8679, 9205, 9765, 11835, 11935, 14465, 15345, 16569, 20251, 21483, 24459, 26037, 27615, 35805, 40765, 43395, 57071, 60753, 73377, 82845, 89683, 101255, 107415, 122295, 130185, 171213, 182259, 269049, 285355, 303765, 366885, 448415, 513639, 627781, 807147, 856065, 911295, 1345245, 1883343, 2568195, 3138905, 4035735, 5650029, 9416715, 28250145]

約数ペア:

[(1, 28250145), (3, 9416715), (5, 5650029), (7, 4035735), (9, 3138905), (11, 2568195), (15, 1883343), (21, 1345245), (31, 911295), (33, 856065), (35, 807147), (45, 627781), (55, 513639), (63, 448415), (77, 366885), (93, 303765), (99, 285355), (105, 269049), (155, 182259), (165, 171213), (217, 130185), (231, 122295), (263, 107415), (279, 101255), (315, 89683), (341, 82845), (385, 73377), (465, 60753), (495, 57071), (651, 43395), (693, 40765), (789, 35805), (1023, 27615), (1085, 26037), (1155, 24459), (1315, 21483), (1395, 20251), (1705, 16569), (1841, 15345), (1953, 14465), (2367, 11935), (2387, 11835), (2893, 9765), (3069, 9205), (3255, 8679), (3465, 8153), (3945, 7161), (5115, 5523)]