81081075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3347}}^1$

素因数の和:3396

約数の個数: 48

約数和(自身を含む): 149454720

約数和(自身を除く): 68373645

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 255, 285, 323, 425, 475, 969, 1275, 1425, 1615, 3347, 4845, 8075, 10041, 16735, 24225, 50205, 56899, 63593, 83675, 170697, 190779, 251025, 284495, 317965, 853485, 953895, 1081081, 1422475, 1589825, 3243243, 4267425, 4769475, 5405405, 16216215, 27027025, 81081075]

約数ペア:

[(1, 81081075), (3, 27027025), (5, 16216215), (15, 5405405), (17, 4769475), (19, 4267425), (25, 3243243), (51, 1589825), (57, 1422475), (75, 1081081), (85, 953895), (95, 853485), (255, 317965), (285, 284495), (323, 251025), (425, 190779), (475, 170697), (969, 83675), (1275, 63593), (1425, 56899), (1615, 50205), (3347, 24225), (4845, 16735), (8075, 10041)]