90421940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{3061}}^1$

素因数の和:3288

約数の個数: 48

約数和(自身を含む): 218112384

約数和(自身を除く): 127690444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2110, 2954, 3061, 4220, 5908, 6122, 7385, 12244, 14770, 15305, 21427, 29540, 30610, 42854, 61220, 85708, 107135, 214270, 428540, 645871, 1291742, 2583484, 3229355, 4521097, 6458710, 9042194, 12917420, 18084388, 22605485, 45210970, 90421940]

約数ペア:

[(1, 90421940), (2, 45210970), (4, 22605485), (5, 18084388), (7, 12917420), (10, 9042194), (14, 6458710), (20, 4521097), (28, 3229355), (35, 2583484), (70, 1291742), (140, 645871), (211, 428540), (422, 214270), (844, 107135), (1055, 85708), (1477, 61220), (2110, 42854), (2954, 30610), (3061, 29540), (4220, 21427), (5908, 15305), (6122, 14770), (7385, 12244)]