81901890

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{130003}}^1$

素因数の和:130023

約数の個数: 48

約数和(自身を含む): 243367488

約数和(自身を除く): 161465598

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 130003, 260006, 390009, 650015, 780018, 910021, 1170027, 1300030, 1820042, 1950045, 2340054, 2730063, 3900090, 4550105, 5460126, 5850135, 8190189, 9100210, 11700270, 13650315, 16380378, 27300630, 40950945, 81901890]

約数ペア:

[(1, 81901890), (2, 40950945), (3, 27300630), (5, 16380378), (6, 13650315), (7, 11700270), (9, 9100210), (10, 8190189), (14, 5850135), (15, 5460126), (18, 4550105), (21, 3900090), (30, 2730063), (35, 2340054), (42, 1950045), (45, 1820042), (63, 1300030), (70, 1170027), (90, 910021), (105, 780018), (126, 650015), (210, 390009), (315, 260006), (630, 130003)]