257029990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{16921}}^1$

素因数の和:16973

約数の個数: 48

約数和(自身を含む): 555583104

約数和(自身を除く): 298553114

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 49, 62, 70, 98, 155, 217, 245, 310, 434, 490, 1085, 1519, 2170, 3038, 7595, 15190, 16921, 33842, 84605, 118447, 169210, 236894, 524551, 592235, 829129, 1049102, 1184470, 1658258, 2622755, 3671857, 4145645, 5245510, 7343714, 8291290, 18359285, 25702999, 36718570, 51405998, 128514995, 257029990]

約数ペア:

[(1, 257029990), (2, 128514995), (5, 51405998), (7, 36718570), (10, 25702999), (14, 18359285), (31, 8291290), (35, 7343714), (49, 5245510), (62, 4145645), (70, 3671857), (98, 2622755), (155, 1658258), (217, 1184470), (245, 1049102), (310, 829129), (434, 592235), (490, 524551), (1085, 236894), (1519, 169210), (2170, 118447), (3038, 84605), (7595, 33842), (15190, 16921)]