641962376

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{108881}}^1$

素因数の和:108965

約数の個数: 32

約数和(自身を含む): 1332715680

約数和(自身を除く): 690753304

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 134, 268, 536, 737, 1474, 2948, 5896, 108881, 217762, 435524, 871048, 1197691, 2395382, 4790764, 7295027, 9581528, 14590054, 29180108, 58360216, 80245297, 160490594, 320981188, 641962376]

約数ペア:

[(1, 641962376), (2, 320981188), (4, 160490594), (8, 80245297), (11, 58360216), (22, 29180108), (44, 14590054), (67, 9581528), (88, 7295027), (134, 4790764), (268, 2395382), (536, 1197691), (737, 871048), (1474, 435524), (2948, 217762), (5896, 108881)]