138568220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{21059}}^1$

素因数の和:21122

約数の個数: 48

約数和(自身を含む): 339655680

約数和(自身を除く): 201087460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 21059, 42118, 84236, 105295, 147413, 210590, 294826, 421180, 589652, 737065, 989773, 1474130, 1979546, 2948260, 3959092, 4948865, 6928411, 9897730, 13856822, 19795460, 27713644, 34642055, 69284110, 138568220]

約数ペア:

[(1, 138568220), (2, 69284110), (4, 34642055), (5, 27713644), (7, 19795460), (10, 13856822), (14, 9897730), (20, 6928411), (28, 4948865), (35, 3959092), (47, 2948260), (70, 1979546), (94, 1474130), (140, 989773), (188, 737065), (235, 589652), (329, 421180), (470, 294826), (658, 210590), (940, 147413), (1316, 105295), (1645, 84236), (3290, 42118), (6580, 21059)]