640304216

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{311}}^1\times {\mathrm{6277}}^1$

素因数の和:6635

約数の個数: 32

約数和(自身を含む): 1234003680

約数和(自身を除く): 593699464

約数列:

[1, 2, 4, 8, 41, 82, 164, 311, 328, 622, 1244, 2488, 6277, 12554, 12751, 25108, 25502, 50216, 51004, 102008, 257357, 514714, 1029428, 1952147, 2058856, 3904294, 7808588, 15617176, 80038027, 160076054, 320152108, 640304216]

約数ペア:

[(1, 640304216), (2, 320152108), (4, 160076054), (8, 80038027), (41, 15617176), (82, 7808588), (164, 3904294), (311, 2058856), (328, 1952147), (622, 1029428), (1244, 514714), (2488, 257357), (6277, 102008), (12554, 51004), (12751, 50216), (25108, 25502)]