81972345

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{373}}^1$

素因数の和:431

約数の個数: 96

約数和(自身を含む): 171908352

約数和(自身を除く): 89936007

約数列:

[1, 3, 5, 7, 13, 15, 21, 23, 35, 39, 49, 65, 69, 91, 105, 115, 147, 161, 195, 245, 273, 299, 345, 373, 455, 483, 637, 735, 805, 897, 1119, 1127, 1365, 1495, 1865, 1911, 2093, 2415, 2611, 3185, 3381, 4485, 4849, 5595, 5635, 6279, 7833, 8579, 9555, 10465, 13055, 14547, 14651, 16905, 18277, 24245, 25737, 31395, 33943, 39165, 42895, 43953, 54831, 60053, 72735, 73255, 91385, 101829, 111527, 128685, 169715, 180159, 219765, 237601, 274155, 300265, 334581, 420371, 509145, 557635, 712803, 780689, 900795, 1188005, 1261113, 1672905, 2101855, 2342067, 3564015, 3903445, 5464823, 6305565, 11710335, 16394469, 27324115, 81972345]

約数ペア:

[(1, 81972345), (3, 27324115), (5, 16394469), (7, 11710335), (13, 6305565), (15, 5464823), (21, 3903445), (23, 3564015), (35, 2342067), (39, 2101855), (49, 1672905), (65, 1261113), (69, 1188005), (91, 900795), (105, 780689), (115, 712803), (147, 557635), (161, 509145), (195, 420371), (245, 334581), (273, 300265), (299, 274155), (345, 237601), (373, 219765), (455, 180159), (483, 169715), (637, 128685), (735, 111527), (805, 101829), (897, 91385), (1119, 73255), (1127, 72735), (1365, 60053), (1495, 54831), (1865, 43953), (1911, 42895), (2093, 39165), (2415, 33943), (2611, 31395), (3185, 25737), (3381, 24245), (4485, 18277), (4849, 16905), (5595, 14651), (5635, 14547), (6279, 13055), (7833, 10465), (8579, 9555)]