20739654320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3366827}}^1$

素因数の和:3366858

約数の個数: 80

約数和(自身を含む): 60118080768

約数和(自身を除く): 39378426448

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 3366827, 6733654, 13467308, 16834135, 23567789, 26934616, 33668270, 37035097, 47135578, 53869232, 67336540, 74070194, 94271156, 117838945, 134673080, 148140388, 185175485, 188542312, 235677890, 259245679, 269346160, 296280776, 370350970, 377084624, 471355780, 518491358, 592561552, 740701940, 942711560, 1036982716, 1296228395, 1481403880, 1885423120, 2073965432, 2592456790, 2962807760, 4147930864, 5184913580, 10369827160, 20739654320]

約数ペア:

[(1, 20739654320), (2, 10369827160), (4, 5184913580), (5, 4147930864), (7, 2962807760), (8, 2592456790), (10, 2073965432), (11, 1885423120), (14, 1481403880), (16, 1296228395), (20, 1036982716), (22, 942711560), (28, 740701940), (35, 592561552), (40, 518491358), (44, 471355780), (55, 377084624), (56, 370350970), (70, 296280776), (77, 269346160), (80, 259245679), (88, 235677890), (110, 188542312), (112, 185175485), (140, 148140388), (154, 134673080), (176, 117838945), (220, 94271156), (280, 74070194), (308, 67336540), (385, 53869232), (440, 47135578), (560, 37035097), (616, 33668270), (770, 26934616), (880, 23567789), (1232, 16834135), (1540, 13467308), (3080, 6733654), (6160, 3366827)]