155656960

素因数分解:

$2^8\times 5^1\times {\mathrm{121607}}^1$

素因数の和:121628

約数の個数: 36

約数和(自身を含む): 372850128

約数和(自身を除く): 217193168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 121607, 243214, 486428, 608035, 972856, 1216070, 1945712, 2432140, 3891424, 4864280, 7782848, 9728560, 15565696, 19457120, 31131392, 38914240, 77828480, 155656960]

約数ペア:

[(1, 155656960), (2, 77828480), (4, 38914240), (5, 31131392), (8, 19457120), (10, 15565696), (16, 9728560), (20, 7782848), (32, 4864280), (40, 3891424), (64, 2432140), (80, 1945712), (128, 1216070), (160, 972856), (256, 608035), (320, 486428), (640, 243214), (1280, 121607)]