8719340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1021}}^1$

素因数の和:1098

約数の個数: 48

約数和(自身を含む): 21290304

約数和(自身を除く): 12570964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1021, 1220, 1708, 2042, 2135, 4084, 4270, 5105, 7147, 8540, 10210, 14294, 20420, 28588, 35735, 62281, 71470, 124562, 142940, 249124, 311405, 435967, 622810, 871934, 1245620, 1743868, 2179835, 4359670, 8719340]

約数ペア:

[(1, 8719340), (2, 4359670), (4, 2179835), (5, 1743868), (7, 1245620), (10, 871934), (14, 622810), (20, 435967), (28, 311405), (35, 249124), (61, 142940), (70, 124562), (122, 71470), (140, 62281), (244, 35735), (305, 28588), (427, 20420), (610, 14294), (854, 10210), (1021, 8540), (1220, 7147), (1708, 5105), (2042, 4270), (2135, 4084)]