280492095

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{443}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 515579904

約数和(自身を除く): 235087809

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 191, 195, 221, 255, 443, 573, 663, 955, 1105, 1329, 2215, 2483, 2865, 3247, 3315, 5759, 6645, 7449, 7531, 9741, 12415, 16235, 17277, 22593, 28795, 37245, 37655, 42211, 48705, 84613, 86385, 97903, 112965, 126633, 211055, 253839, 293709, 423065, 489515, 633165, 1099969, 1269195, 1438421, 1468545, 3299907, 4315263, 5499845, 7192105, 16499535, 18699473, 21576315, 56098419, 93497365, 280492095]

約数ペア:

[(1, 280492095), (3, 93497365), (5, 56098419), (13, 21576315), (15, 18699473), (17, 16499535), (39, 7192105), (51, 5499845), (65, 4315263), (85, 3299907), (191, 1468545), (195, 1438421), (221, 1269195), (255, 1099969), (443, 633165), (573, 489515), (663, 423065), (955, 293709), (1105, 253839), (1329, 211055), (2215, 126633), (2483, 112965), (2865, 97903), (3247, 86385), (3315, 84613), (5759, 48705), (6645, 42211), (7449, 37655), (7531, 37245), (9741, 28795), (12415, 22593), (16235, 17277)]