2019489640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{91297}}^1$

素因数の和:91394

約数の個数: 64

約数和(自身を含む): 5258764800

約数和(自身を除く): 3239275160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1580, 2212, 2765, 3160, 4424, 5530, 11060, 22120, 91297, 182594, 365188, 456485, 639079, 730376, 912970, 1278158, 1825940, 2556316, 3195395, 3651880, 5112632, 6390790, 7212463, 12781580, 14424926, 25563160, 28849852, 36062315, 50487241, 57699704, 72124630, 100974482, 144249260, 201948964, 252436205, 288498520, 403897928, 504872410, 1009744820, 2019489640]

約数ペア:

[(1, 2019489640), (2, 1009744820), (4, 504872410), (5, 403897928), (7, 288498520), (8, 252436205), (10, 201948964), (14, 144249260), (20, 100974482), (28, 72124630), (35, 57699704), (40, 50487241), (56, 36062315), (70, 28849852), (79, 25563160), (140, 14424926), (158, 12781580), (280, 7212463), (316, 6390790), (395, 5112632), (553, 3651880), (632, 3195395), (790, 2556316), (1106, 1825940), (1580, 1278158), (2212, 912970), (2765, 730376), (3160, 639079), (4424, 456485), (5530, 365188), (11060, 182594), (22120, 91297)]