80145920

素因数分解:

$2^9\times 5^1\times {\mathrm{31307}}^1$

素因数の和:31330

約数の個数: 40

約数和(自身を含む): 192168504

約数和(自身を除く): 112022584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 31307, 62614, 125228, 156535, 250456, 313070, 500912, 626140, 1001824, 1252280, 2003648, 2504560, 4007296, 5009120, 8014592, 10018240, 16029184, 20036480, 40072960, 80145920]

約数ペア:

[(1, 80145920), (2, 40072960), (4, 20036480), (5, 16029184), (8, 10018240), (10, 8014592), (16, 5009120), (20, 4007296), (32, 2504560), (40, 2003648), (64, 1252280), (80, 1001824), (128, 626140), (160, 500912), (256, 313070), (320, 250456), (512, 156535), (640, 125228), (1280, 62614), (2560, 31307)]