221424385

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3659}}^1$

素因数の和:3710

約数の個数: 48

約数和(自身を含む): 350481600

約数和(自身を除く): 129057215

約数列:

[1, 5, 7, 13, 19, 35, 49, 65, 91, 95, 133, 245, 247, 455, 637, 665, 931, 1235, 1729, 3185, 3659, 4655, 8645, 12103, 18295, 25613, 47567, 60515, 69521, 128065, 179291, 237835, 332969, 347605, 486647, 896455, 903773, 1664845, 2330783, 2433235, 3406529, 4518865, 6326411, 11653915, 17032645, 31632055, 44284877, 221424385]

約数ペア:

[(1, 221424385), (5, 44284877), (7, 31632055), (13, 17032645), (19, 11653915), (35, 6326411), (49, 4518865), (65, 3406529), (91, 2433235), (95, 2330783), (133, 1664845), (245, 903773), (247, 896455), (455, 486647), (637, 347605), (665, 332969), (931, 237835), (1235, 179291), (1729, 128065), (3185, 69521), (3659, 60515), (4655, 47567), (8645, 25613), (12103, 18295)]