158206820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1\times {\mathrm{487}}^1$

素因数の和:972

約数の個数: 48

約数和(自身を含む): 342693120

約数和(自身を除く): 184486300

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 439, 487, 740, 878, 974, 1756, 1948, 2195, 2435, 4390, 4870, 8780, 9740, 16243, 18019, 32486, 36038, 64972, 72076, 81215, 90095, 162430, 180190, 213793, 324860, 360380, 427586, 855172, 1068965, 2137930, 4275860, 7910341, 15820682, 31641364, 39551705, 79103410, 158206820]

約数ペア:

[(1, 158206820), (2, 79103410), (4, 39551705), (5, 31641364), (10, 15820682), (20, 7910341), (37, 4275860), (74, 2137930), (148, 1068965), (185, 855172), (370, 427586), (439, 360380), (487, 324860), (740, 213793), (878, 180190), (974, 162430), (1756, 90095), (1948, 81215), (2195, 72076), (2435, 64972), (4390, 36038), (4870, 32486), (8780, 18019), (9740, 16243)]