1990485

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 4043520

約数和(自身を除く): 2053035

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 89, 105, 213, 267, 315, 355, 445, 497, 623, 639, 801, 1065, 1335, 1491, 1869, 2485, 3115, 3195, 4005, 4473, 5607, 6319, 7455, 9345, 18957, 22365, 28035, 31595, 44233, 56871, 94785, 132699, 221165, 284355, 398097, 663495, 1990485]

約数ペア:

[(1, 1990485), (3, 663495), (5, 398097), (7, 284355), (9, 221165), (15, 132699), (21, 94785), (35, 56871), (45, 44233), (63, 31595), (71, 28035), (89, 22365), (105, 18957), (213, 9345), (267, 7455), (315, 6319), (355, 5607), (445, 4473), (497, 4005), (623, 3195), (639, 3115), (801, 2485), (1065, 1869), (1335, 1491)]