19571020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3251}}^1$

素因数の和:3310

約数の個数: 48

約数和(自身を含む): 48077568

約数和(自身を除く): 28506548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 3251, 6020, 6502, 13004, 16255, 22757, 32510, 45514, 65020, 91028, 113785, 139793, 227570, 279586, 455140, 559172, 698965, 978551, 1397930, 1957102, 2795860, 3914204, 4892755, 9785510, 19571020]

約数ペア:

[(1, 19571020), (2, 9785510), (4, 4892755), (5, 3914204), (7, 2795860), (10, 1957102), (14, 1397930), (20, 978551), (28, 698965), (35, 559172), (43, 455140), (70, 279586), (86, 227570), (140, 139793), (172, 113785), (215, 91028), (301, 65020), (430, 45514), (602, 32510), (860, 22757), (1204, 16255), (1505, 13004), (3010, 6502), (3251, 6020)]