20805540364

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1\times {\mathrm{39313}}^1$

素因数の和:39826

約数の個数: 48

約数和(自身を含む): 42719535936

約数和(自身を除く): 21913995572

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 461, 574, 922, 1148, 1844, 3227, 6454, 12908, 18901, 37802, 39313, 75604, 78626, 132307, 157252, 264614, 275191, 529228, 550382, 1100764, 1611833, 3223666, 6447332, 11282831, 18123293, 22565662, 36246586, 45131324, 72493172, 126863051, 253726102, 507452204, 743055013, 1486110026, 2972220052, 5201385091, 10402770182, 20805540364]

約数ペア:

[(1, 20805540364), (2, 10402770182), (4, 5201385091), (7, 2972220052), (14, 1486110026), (28, 743055013), (41, 507452204), (82, 253726102), (164, 126863051), (287, 72493172), (461, 45131324), (574, 36246586), (922, 22565662), (1148, 18123293), (1844, 11282831), (3227, 6447332), (6454, 3223666), (12908, 1611833), (18901, 1100764), (37802, 550382), (39313, 529228), (75604, 275191), (78626, 264614), (132307, 157252)]