213521840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{381289}}^1$

素因数の和:381309

約数の個数: 40

約数和(自身を含む): 567359520

約数和(自身を除く): 353837680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 381289, 762578, 1525156, 1906445, 2669023, 3050312, 3812890, 5338046, 6100624, 7625780, 10676092, 13345115, 15251560, 21352184, 26690230, 30503120, 42704368, 53380460, 106760920, 213521840]

約数ペア:

[(1, 213521840), (2, 106760920), (4, 53380460), (5, 42704368), (7, 30503120), (8, 26690230), (10, 21352184), (14, 15251560), (16, 13345115), (20, 10676092), (28, 7625780), (35, 6100624), (40, 5338046), (56, 3812890), (70, 3050312), (80, 2669023), (112, 1906445), (140, 1525156), (280, 762578), (560, 381289)]