20651888

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:365

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 20595472

約数列:

[1, 2, 4, 8, 16, 59, 118, 131, 167, 236, 262, 334, 472, 524, 668, 944, 1048, 1336, 2096, 2672, 7729, 9853, 15458, 19706, 21877, 30916, 39412, 43754, 61832, 78824, 87508, 123664, 157648, 175016, 350032, 1290743, 2581486, 5162972, 10325944, 20651888]

約数ペア:

[(1, 20651888), (2, 10325944), (4, 5162972), (8, 2581486), (16, 1290743), (59, 350032), (118, 175016), (131, 157648), (167, 123664), (236, 87508), (262, 78824), (334, 61832), (472, 43754), (524, 39412), (668, 30916), (944, 21877), (1048, 19706), (1336, 15458), (2096, 9853), (2672, 7729)]