19950255

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 37870560

約数和(自身を除く): 17920305

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 67, 117, 195, 201, 335, 509, 585, 603, 871, 1005, 1527, 2545, 2613, 3015, 4355, 4581, 6617, 7635, 7839, 13065, 19851, 22905, 33085, 34103, 39195, 59553, 99255, 102309, 170515, 297765, 306927, 443339, 511545, 1330017, 1534635, 2216695, 3990051, 6650085, 19950255]

約数ペア:

[(1, 19950255), (3, 6650085), (5, 3990051), (9, 2216695), (13, 1534635), (15, 1330017), (39, 511545), (45, 443339), (65, 306927), (67, 297765), (117, 170515), (195, 102309), (201, 99255), (335, 59553), (509, 39195), (585, 34103), (603, 33085), (871, 22905), (1005, 19851), (1527, 13065), (2545, 7839), (2613, 7635), (3015, 6617), (4355, 4581)]