728657145

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{1303}}^1$

素因数の和:1391

約数の個数: 72

約数和(自身を含む): 1373925696

約数和(自身を除く): 645268551

約数列:

[1, 3, 5, 9, 15, 17, 43, 45, 51, 85, 129, 153, 215, 255, 289, 387, 645, 731, 765, 867, 1303, 1445, 1935, 2193, 2601, 3655, 3909, 4335, 6515, 6579, 10965, 11727, 12427, 13005, 19545, 22151, 32895, 37281, 56029, 58635, 62135, 66453, 110755, 111843, 168087, 186405, 199359, 280145, 332265, 376567, 504261, 559215, 840435, 952493, 996795, 1129701, 1882835, 2521305, 2857479, 3389103, 4762465, 5648505, 8572437, 14287395, 16192381, 16945515, 42862185, 48577143, 80961905, 145731429, 242885715, 728657145]

約数ペア:

[(1, 728657145), (3, 242885715), (5, 145731429), (9, 80961905), (15, 48577143), (17, 42862185), (43, 16945515), (45, 16192381), (51, 14287395), (85, 8572437), (129, 5648505), (153, 4762465), (215, 3389103), (255, 2857479), (289, 2521305), (387, 1882835), (645, 1129701), (731, 996795), (765, 952493), (867, 840435), (1303, 559215), (1445, 504261), (1935, 376567), (2193, 332265), (2601, 280145), (3655, 199359), (3909, 186405), (4335, 168087), (6515, 111843), (6579, 110755), (10965, 66453), (11727, 62135), (12427, 58635), (13005, 56029), (19545, 37281), (22151, 32895)]