65521215

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 120463200

約数和(自身を除く): 54941985

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 197, 285, 389, 591, 855, 985, 1167, 1773, 1945, 2955, 3501, 3743, 5835, 7391, 8865, 11229, 17505, 18715, 22173, 33687, 36955, 56145, 66519, 76633, 110865, 168435, 229899, 332595, 383165, 689697, 1149495, 1456027, 3448485, 4368081, 7280135, 13104243, 21840405, 65521215]

約数ペア:

[(1, 65521215), (3, 21840405), (5, 13104243), (9, 7280135), (15, 4368081), (19, 3448485), (45, 1456027), (57, 1149495), (95, 689697), (171, 383165), (197, 332595), (285, 229899), (389, 168435), (591, 110865), (855, 76633), (985, 66519), (1167, 56145), (1773, 36955), (1945, 33687), (2955, 22173), (3501, 18715), (3743, 17505), (5835, 11229), (7391, 8865)]