72172681

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 89303040

約数和(自身を除く): 17130359

約数列:

[1, 7, 31, 37, 89, 101, 217, 259, 623, 707, 1147, 2759, 3131, 3293, 3737, 8029, 8989, 19313, 21917, 23051, 26159, 62923, 102083, 115847, 278659, 332593, 714581, 810929, 1950613, 2328151, 10310383, 72172681]

約数ペア:

[(1, 72172681), (7, 10310383), (31, 2328151), (37, 1950613), (89, 810929), (101, 714581), (217, 332593), (259, 278659), (623, 115847), (707, 102083), (1147, 62923), (2759, 26159), (3131, 23051), (3293, 21917), (3737, 19313), (8029, 8989)]