16380945

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:84

約数の個数: 144

約数和(自身を含む): 38413440

約数和(自身を除く): 22032495

約数列:

[1, 3, 5, 7, 9, 15, 17, 19, 21, 23, 35, 45, 49, 51, 57, 63, 69, 85, 95, 105, 115, 119, 133, 147, 153, 161, 171, 207, 245, 255, 285, 315, 323, 345, 357, 391, 399, 437, 441, 483, 595, 665, 735, 765, 805, 833, 855, 931, 969, 1035, 1071, 1127, 1173, 1197, 1311, 1449, 1615, 1785, 1955, 1995, 2185, 2205, 2261, 2415, 2499, 2737, 2793, 2907, 3059, 3381, 3519, 3933, 4165, 4655, 4845, 5355, 5635, 5865, 5985, 6555, 6783, 7245, 7429, 7497, 8211, 8379, 9177, 10143, 11305, 12495, 13685, 13965, 14535, 15295, 15827, 16905, 17595, 19159, 19665, 20349, 21413, 22287, 24633, 27531, 33915, 37145, 37485, 41055, 41895, 45885, 47481, 50715, 52003, 57477, 64239, 66861, 79135, 95795, 101745, 107065, 111435, 123165, 137655, 142443, 156009, 172431, 192717, 237405, 260015, 287385, 321195, 334305, 364021, 468027, 712215, 780045, 862155, 963585, 1092063, 1820105, 2340135, 3276189, 5460315, 16380945]

約数ペア:

[(1, 16380945), (3, 5460315), (5, 3276189), (7, 2340135), (9, 1820105), (15, 1092063), (17, 963585), (19, 862155), (21, 780045), (23, 712215), (35, 468027), (45, 364021), (49, 334305), (51, 321195), (57, 287385), (63, 260015), (69, 237405), (85, 192717), (95, 172431), (105, 156009), (115, 142443), (119, 137655), (133, 123165), (147, 111435), (153, 107065), (161, 101745), (171, 95795), (207, 79135), (245, 66861), (255, 64239), (285, 57477), (315, 52003), (323, 50715), (345, 47481), (357, 45885), (391, 41895), (399, 41055), (437, 37485), (441, 37145), (483, 33915), (595, 27531), (665, 24633), (735, 22287), (765, 21413), (805, 20349), (833, 19665), (855, 19159), (931, 17595), (969, 16905), (1035, 15827), (1071, 15295), (1127, 14535), (1173, 13965), (1197, 13685), (1311, 12495), (1449, 11305), (1615, 10143), (1785, 9177), (1955, 8379), (1995, 8211), (2185, 7497), (2205, 7429), (2261, 7245), (2415, 6783), (2499, 6555), (2737, 5985), (2793, 5865), (2907, 5635), (3059, 5355), (3381, 4845), (3519, 4655), (3933, 4165)]