28251765

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 52116480

約数和(自身を除く): 23864715

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 173, 191, 285, 519, 573, 855, 865, 955, 1557, 1719, 2595, 2865, 3287, 3629, 7785, 8595, 9861, 10887, 16435, 18145, 29583, 32661, 33043, 49305, 54435, 99129, 147915, 163305, 165215, 297387, 495645, 627817, 1486935, 1883451, 3139085, 5650353, 9417255, 28251765]

約数ペア:

[(1, 28251765), (3, 9417255), (5, 5650353), (9, 3139085), (15, 1883451), (19, 1486935), (45, 627817), (57, 495645), (95, 297387), (171, 165215), (173, 163305), (191, 147915), (285, 99129), (519, 54435), (573, 49305), (855, 33043), (865, 32661), (955, 29583), (1557, 18145), (1719, 16435), (2595, 10887), (2865, 9861), (3287, 8595), (3629, 7785)]