40291840

素因数分解:

$2^9\times 5^1\times {\mathrm{15739}}^1$

素因数の和:15762

約数の個数: 40

約数和(自身を含む): 96612120

約数和(自身を除く): 56320280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 15739, 31478, 62956, 78695, 125912, 157390, 251824, 314780, 503648, 629560, 1007296, 1259120, 2014592, 2518240, 4029184, 5036480, 8058368, 10072960, 20145920, 40291840]

約数ペア:

[(1, 40291840), (2, 20145920), (4, 10072960), (5, 8058368), (8, 5036480), (10, 4029184), (16, 2518240), (20, 2014592), (32, 1259120), (40, 1007296), (64, 629560), (80, 503648), (128, 314780), (160, 251824), (256, 157390), (320, 125912), (512, 78695), (640, 62956), (1280, 31478), (2560, 15739)]