280159215

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{381169}}^1$

素因数の和:381191

約数の個数: 24

約数和(自身を含む): 521440560

約数和(自身を除く): 241281345

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 381169, 1143507, 1905845, 2668183, 5717535, 8004549, 13340915, 18677281, 40022745, 56031843, 93386405, 280159215]

約数ペア:

[(1, 280159215), (3, 93386405), (5, 56031843), (7, 40022745), (15, 18677281), (21, 13340915), (35, 8004549), (49, 5717535), (105, 2668183), (147, 1905845), (245, 1143507), (735, 381169)]