664861395

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:241

約数の個数: 128

約数和(自身を含む): 1293926400

約数和(自身を除く): 629065005

約数列:

[1, 3, 5, 11, 15, 19, 29, 33, 55, 57, 71, 87, 95, 103, 145, 165, 209, 213, 285, 309, 319, 355, 435, 515, 551, 627, 781, 957, 1045, 1065, 1133, 1349, 1545, 1595, 1653, 1957, 2059, 2343, 2755, 2987, 3135, 3399, 3905, 4047, 4785, 5665, 5871, 6061, 6177, 6745, 7313, 8265, 8961, 9785, 10295, 11715, 14839, 14935, 16995, 18183, 20235, 21527, 21939, 22649, 29355, 30305, 30885, 32857, 36565, 39121, 44517, 44805, 56753, 64581, 67947, 74195, 80443, 90915, 98571, 107635, 109695, 113245, 117363, 138947, 164285, 170259, 195605, 212077, 222585, 241329, 283765, 322905, 339735, 402215, 416841, 430331, 492855, 586815, 624283, 636231, 694735, 851295, 1060385, 1206645, 1290993, 1528417, 1872849, 2084205, 2151655, 2332847, 3121415, 3181155, 4029463, 4585251, 6454965, 6998541, 7642085, 9364245, 11664235, 12088389, 20147315, 22926255, 34992705, 44324093, 60441945, 132972279, 221620465, 664861395]

約数ペア:

[(1, 664861395), (3, 221620465), (5, 132972279), (11, 60441945), (15, 44324093), (19, 34992705), (29, 22926255), (33, 20147315), (55, 12088389), (57, 11664235), (71, 9364245), (87, 7642085), (95, 6998541), (103, 6454965), (145, 4585251), (165, 4029463), (209, 3181155), (213, 3121415), (285, 2332847), (309, 2151655), (319, 2084205), (355, 1872849), (435, 1528417), (515, 1290993), (551, 1206645), (627, 1060385), (781, 851295), (957, 694735), (1045, 636231), (1065, 624283), (1133, 586815), (1349, 492855), (1545, 430331), (1595, 416841), (1653, 402215), (1957, 339735), (2059, 322905), (2343, 283765), (2755, 241329), (2987, 222585), (3135, 212077), (3399, 195605), (3905, 170259), (4047, 164285), (4785, 138947), (5665, 117363), (5871, 113245), (6061, 109695), (6177, 107635), (6745, 98571), (7313, 90915), (8265, 80443), (8961, 74195), (9785, 67947), (10295, 64581), (11715, 56753), (14839, 44805), (14935, 44517), (16995, 39121), (18183, 36565), (20235, 32857), (21527, 30885), (21939, 30305), (22649, 29355)]