128290428

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{72727}}^1$

素因数の和:72751

約数の個数: 54

約数和(自身を含む): 377240136

約数和(自身を除く): 248949708

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 72727, 145454, 218181, 290908, 436362, 509089, 654543, 872724, 1018178, 1309086, 1527267, 2036356, 2618172, 3054534, 3563623, 4581801, 6109068, 7127246, 9163602, 10690869, 14254492, 18327204, 21381738, 32072607, 42763476, 64145214, 128290428]

約数ペア:

[(1, 128290428), (2, 64145214), (3, 42763476), (4, 32072607), (6, 21381738), (7, 18327204), (9, 14254492), (12, 10690869), (14, 9163602), (18, 7127246), (21, 6109068), (28, 4581801), (36, 3563623), (42, 3054534), (49, 2618172), (63, 2036356), (84, 1527267), (98, 1309086), (126, 1018178), (147, 872724), (196, 654543), (252, 509089), (294, 436362), (441, 290908), (588, 218181), (882, 145454), (1764, 72727)]