55778260

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{521}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 120757392

約数和(自身を除く): 64979132

約数列:

[1, 2, 4, 5, 10, 20, 53, 101, 106, 202, 212, 265, 404, 505, 521, 530, 1010, 1042, 1060, 2020, 2084, 2605, 5210, 5353, 10420, 10706, 21412, 26765, 27613, 52621, 53530, 55226, 105242, 107060, 110452, 138065, 210484, 263105, 276130, 526210, 552260, 1052420, 2788913, 5577826, 11155652, 13944565, 27889130, 55778260]

約数ペア:

[(1, 55778260), (2, 27889130), (4, 13944565), (5, 11155652), (10, 5577826), (20, 2788913), (53, 1052420), (101, 552260), (106, 526210), (202, 276130), (212, 263105), (265, 210484), (404, 138065), (505, 110452), (521, 107060), (530, 105242), (1010, 55226), (1042, 53530), (1060, 52621), (2020, 27613), (2084, 26765), (2605, 21412), (5210, 10706), (5353, 10420)]