40072960

素因数分解:

$2^8\times 5^1\times {\mathrm{31307}}^1$

素因数の和:31328

約数の個数: 36

約数和(自身を含む): 95990328

約数和(自身を除く): 55917368

約数列:

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

約数ペア:

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