178338980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{307481}}^1$

素因数の和:307519

約数の個数: 24

約数和(自身を含む): 387427320

約数和(自身を除く): 209088340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 307481, 614962, 1229924, 1537405, 3074810, 6149620, 8916949, 17833898, 35667796, 44584745, 89169490, 178338980]

約数ペア:

[(1, 178338980), (2, 89169490), (4, 44584745), (5, 35667796), (10, 17833898), (20, 8916949), (29, 6149620), (58, 3074810), (116, 1537405), (145, 1229924), (290, 614962), (580, 307481)]