202115240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{491}}^1$

素因数の和:794

約数の個数: 64

約数和(自身を含む): 468659520

約数和(自身を除く): 266544280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 251, 328, 410, 491, 502, 820, 982, 1004, 1255, 1640, 1964, 2008, 2455, 2510, 3928, 4910, 5020, 9820, 10040, 10291, 19640, 20131, 20582, 40262, 41164, 51455, 80524, 82328, 100655, 102910, 123241, 161048, 201310, 205820, 246482, 402620, 411640, 492964, 616205, 805240, 985928, 1232410, 2464820, 4929640, 5052881, 10105762, 20211524, 25264405, 40423048, 50528810, 101057620, 202115240]

約数ペア:

[(1, 202115240), (2, 101057620), (4, 50528810), (5, 40423048), (8, 25264405), (10, 20211524), (20, 10105762), (40, 5052881), (41, 4929640), (82, 2464820), (164, 1232410), (205, 985928), (251, 805240), (328, 616205), (410, 492964), (491, 411640), (502, 402620), (820, 246482), (982, 205820), (1004, 201310), (1255, 161048), (1640, 123241), (1964, 102910), (2008, 100655), (2455, 82328), (2510, 80524), (3928, 51455), (4910, 41164), (5020, 40262), (9820, 20582), (10040, 20131), (10291, 19640)]