257181890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{16931}}^1$

素因数の和:16983

約数の個数: 48

約数和(自身を含む): 555911424

約数和(自身を除く): 298729534

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, 16931, 33862, 84655, 118517, 169310, 237034, 524861, 592585, 829619, 1049722, 1185170, 1659238, 2624305, 3674027, 4148095, 5248610, 7348054, 8296190, 18370135, 25718189, 36740270, 51436378, 128590945, 257181890]

約数ペア:

[(1, 257181890), (2, 128590945), (5, 51436378), (7, 36740270), (10, 25718189), (14, 18370135), (31, 8296190), (35, 7348054), (49, 5248610), (62, 4148095), (70, 3674027), (98, 2624305), (155, 1659238), (217, 1185170), (245, 1049722), (310, 829619), (434, 592585), (490, 524861), (1085, 237034), (1519, 169310), (2170, 118517), (3038, 84655), (7595, 33862), (15190, 16931)]