257022405

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{17683}}^1$

素因数の和:17730

約数の個数: 48

約数和(自身を含む): 496566720

約数和(自身を除く): 239544315

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 255, 285, 323, 765, 855, 969, 1615, 2907, 4845, 14535, 17683, 53049, 88415, 159147, 265245, 300611, 335977, 795735, 901833, 1007931, 1503055, 1679885, 2705499, 3023793, 4509165, 5039655, 5711609, 13527495, 15118965, 17134827, 28558045, 51404481, 85674135, 257022405]

約数ペア:

[(1, 257022405), (3, 85674135), (5, 51404481), (9, 28558045), (15, 17134827), (17, 15118965), (19, 13527495), (45, 5711609), (51, 5039655), (57, 4509165), (85, 3023793), (95, 2705499), (153, 1679885), (171, 1503055), (255, 1007931), (285, 901833), (323, 795735), (765, 335977), (855, 300611), (969, 265245), (1615, 159147), (2907, 88415), (4845, 53049), (14535, 17683)]