1028820208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{260329}}^1$

素因数の和:260369

約数の個数: 40

約数和(自身を含む): 2259664400

約数和(自身を除く): 1230844192

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 260329, 520658, 1041316, 2082632, 3384277, 4165264, 4946251, 6768554, 9892502, 13537108, 19785004, 27074216, 39570008, 54148432, 64301263, 79140016, 128602526, 257205052, 514410104, 1028820208]

約数ペア:

[(1, 1028820208), (2, 514410104), (4, 257205052), (8, 128602526), (13, 79140016), (16, 64301263), (19, 54148432), (26, 39570008), (38, 27074216), (52, 19785004), (76, 13537108), (104, 9892502), (152, 6768554), (208, 4946251), (247, 4165264), (304, 3384277), (494, 2082632), (988, 1041316), (1976, 520658), (3952, 260329)]