217394072

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{1291}}^1$

素因数の和:1432

約数の個数: 64

約数和(自身を含む): 486205440

約数和(自身を除く): 268811368

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 97, 124, 194, 217, 248, 388, 434, 679, 776, 868, 1291, 1358, 1736, 2582, 2716, 3007, 5164, 5432, 6014, 9037, 10328, 12028, 18074, 21049, 24056, 36148, 40021, 42098, 72296, 80042, 84196, 125227, 160084, 168392, 250454, 280147, 320168, 500908, 560294, 876589, 1001816, 1120588, 1753178, 2241176, 3506356, 3882037, 7012712, 7764074, 15528148, 27174259, 31056296, 54348518, 108697036, 217394072]

約数ペア:

[(1, 217394072), (2, 108697036), (4, 54348518), (7, 31056296), (8, 27174259), (14, 15528148), (28, 7764074), (31, 7012712), (56, 3882037), (62, 3506356), (97, 2241176), (124, 1753178), (194, 1120588), (217, 1001816), (248, 876589), (388, 560294), (434, 500908), (679, 320168), (776, 280147), (868, 250454), (1291, 168392), (1358, 160084), (1736, 125227), (2582, 84196), (2716, 80042), (3007, 72296), (5164, 42098), (5432, 40021), (6014, 36148), (9037, 24056), (10328, 21049), (12028, 18074)]