168271420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{727}}^1$

素因数の和:970

約数の個数: 48

約数和(自身を含む): 361041408

約数和(自身を除く): 192769988

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 163, 284, 326, 355, 652, 710, 727, 815, 1420, 1454, 1630, 2908, 3260, 3635, 7270, 11573, 14540, 23146, 46292, 51617, 57865, 103234, 115730, 118501, 206468, 231460, 237002, 258085, 474004, 516170, 592505, 1032340, 1185010, 2370020, 8413571, 16827142, 33654284, 42067855, 84135710, 168271420]

約数ペア:

[(1, 168271420), (2, 84135710), (4, 42067855), (5, 33654284), (10, 16827142), (20, 8413571), (71, 2370020), (142, 1185010), (163, 1032340), (284, 592505), (326, 516170), (355, 474004), (652, 258085), (710, 237002), (727, 231460), (815, 206468), (1420, 118501), (1454, 115730), (1630, 103234), (2908, 57865), (3260, 51617), (3635, 46292), (7270, 23146), (11573, 14540)]