220172715

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{232987}}^1$

素因数の和:233008

約数の個数: 32

約数和(自身を含む): 447336960

約数和(自身を除く): 227164245

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 232987, 698961, 1164935, 1630909, 2096883, 3494805, 4892727, 6290649, 8154545, 10484415, 14678181, 24463635, 31453245, 44034543, 73390905, 220172715]

約数ペア:

[(1, 220172715), (3, 73390905), (5, 44034543), (7, 31453245), (9, 24463635), (15, 14678181), (21, 10484415), (27, 8154545), (35, 6290649), (45, 4892727), (63, 3494805), (105, 2096883), (135, 1630909), (189, 1164935), (315, 698961), (945, 232987)]