28910115

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:83

約数の個数: 120

約数和(自身を含む): 62406960

約数和(自身を除く): 33496845

約数列:

[1, 3, 5, 9, 13, 15, 17, 19, 27, 39, 45, 51, 57, 65, 81, 85, 95, 117, 135, 153, 171, 195, 221, 247, 255, 285, 289, 323, 351, 405, 459, 513, 585, 663, 741, 765, 855, 867, 969, 1053, 1105, 1235, 1377, 1445, 1539, 1615, 1755, 1989, 2223, 2295, 2565, 2601, 2907, 3315, 3705, 3757, 4199, 4335, 4845, 5265, 5491, 5967, 6669, 6885, 7695, 7803, 8721, 9945, 11115, 11271, 12597, 13005, 14535, 16473, 17901, 18785, 20007, 20995, 23409, 26163, 27455, 29835, 33345, 33813, 37791, 39015, 43605, 49419, 56355, 62985, 71383, 82365, 89505, 100035, 101439, 113373, 117045, 130815, 148257, 169065, 188955, 214149, 247095, 304317, 340119, 356915, 444771, 507195, 566865, 642447, 741285, 1070745, 1521585, 1700595, 1927341, 2223855, 3212235, 5782023, 9636705, 28910115]

約数ペア:

[(1, 28910115), (3, 9636705), (5, 5782023), (9, 3212235), (13, 2223855), (15, 1927341), (17, 1700595), (19, 1521585), (27, 1070745), (39, 741285), (45, 642447), (51, 566865), (57, 507195), (65, 444771), (81, 356915), (85, 340119), (95, 304317), (117, 247095), (135, 214149), (153, 188955), (171, 169065), (195, 148257), (221, 130815), (247, 117045), (255, 113373), (285, 101439), (289, 100035), (323, 89505), (351, 82365), (405, 71383), (459, 62985), (513, 56355), (585, 49419), (663, 43605), (741, 39015), (765, 37791), (855, 33813), (867, 33345), (969, 29835), (1053, 27455), (1105, 26163), (1235, 23409), (1377, 20995), (1445, 20007), (1539, 18785), (1615, 17901), (1755, 16473), (1989, 14535), (2223, 13005), (2295, 12597), (2565, 11271), (2601, 11115), (2907, 9945), (3315, 8721), (3705, 7803), (3757, 7695), (4199, 6885), (4335, 6669), (4845, 5967), (5265, 5491)]