278316445

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{220013}}^1$

素因数の和:220052

約数の個数: 16

約数和(自身を含む): 380184192

約数和(自身を除く): 101867747

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 220013, 1100065, 2420143, 5060299, 12100715, 25301495, 55663289, 278316445]

約数ペア:

[(1, 278316445), (5, 55663289), (11, 25301495), (23, 12100715), (55, 5060299), (115, 2420143), (253, 1100065), (1265, 220013)]