28776195

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{823}}^1$

素因数の和:881

約数の個数: 64

約数和(自身を含む): 60119040

約数和(自身を除く): 31342845

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 37, 45, 63, 105, 111, 135, 185, 189, 259, 315, 333, 555, 777, 823, 945, 999, 1295, 1665, 2331, 2469, 3885, 4115, 4995, 5761, 6993, 7407, 11655, 12345, 17283, 22221, 28805, 30451, 34965, 37035, 51849, 86415, 91353, 111105, 152255, 155547, 213157, 259245, 274059, 456765, 639471, 777735, 822177, 1065785, 1370295, 1918413, 3197355, 4110885, 5755239, 9592065, 28776195]

約数ペア:

[(1, 28776195), (3, 9592065), (5, 5755239), (7, 4110885), (9, 3197355), (15, 1918413), (21, 1370295), (27, 1065785), (35, 822177), (37, 777735), (45, 639471), (63, 456765), (105, 274059), (111, 259245), (135, 213157), (185, 155547), (189, 152255), (259, 111105), (315, 91353), (333, 86415), (555, 51849), (777, 37035), (823, 34965), (945, 30451), (999, 28805), (1295, 22221), (1665, 17283), (2331, 12345), (2469, 11655), (3885, 7407), (4115, 6993), (4995, 5761)]