391642780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{3371}}^1$

素因数の和:3574

約数の個数: 48

約数和(自身を含む): 850310496

約数和(自身を除く): 458667716

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 157, 185, 314, 370, 628, 740, 785, 1570, 3140, 3371, 5809, 6742, 11618, 13484, 16855, 23236, 29045, 33710, 58090, 67420, 116180, 124727, 249454, 498908, 529247, 623635, 1058494, 1247270, 2116988, 2494540, 2646235, 5292470, 10584940, 19582139, 39164278, 78328556, 97910695, 195821390, 391642780]

約数ペア:

[(1, 391642780), (2, 195821390), (4, 97910695), (5, 78328556), (10, 39164278), (20, 19582139), (37, 10584940), (74, 5292470), (148, 2646235), (157, 2494540), (185, 2116988), (314, 1247270), (370, 1058494), (628, 623635), (740, 529247), (785, 498908), (1570, 249454), (3140, 124727), (3371, 116180), (5809, 67420), (6742, 58090), (11618, 33710), (13484, 29045), (16855, 23236)]