65521720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{148913}}^1$

素因数の和:148935

約数の個数: 32

約数和(自身を含む): 160827120

約数和(自身を除く): 95305400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 148913, 297826, 595652, 744565, 1191304, 1489130, 1638043, 2978260, 3276086, 5956520, 6552172, 8190215, 13104344, 16380430, 32760860, 65521720]

約数ペア:

[(1, 65521720), (2, 32760860), (4, 16380430), (5, 13104344), (8, 8190215), (10, 6552172), (11, 5956520), (20, 3276086), (22, 2978260), (40, 1638043), (44, 1489130), (55, 1191304), (88, 744565), (110, 595652), (220, 297826), (440, 148913)]