20796610960

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{24019}}^1$

素因数の和:24248

約数の個数: 80

約数和(自身を含む): 49323628800

約数和(自身を除く): 28527017840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 137, 158, 274, 316, 395, 548, 632, 685, 790, 1096, 1264, 1370, 1580, 2192, 2740, 3160, 5480, 6320, 10823, 10960, 21646, 24019, 43292, 48038, 54115, 86584, 96076, 108230, 120095, 173168, 192152, 216460, 240190, 384304, 432920, 480380, 865840, 960760, 1897501, 1921520, 3290603, 3795002, 6581206, 7590004, 9487505, 13162412, 15180008, 16453015, 18975010, 26324824, 30360016, 32906030, 37950020, 52649648, 65812060, 75900040, 131624120, 151800080, 259957637, 263248240, 519915274, 1039830548, 1299788185, 2079661096, 2599576370, 4159322192, 5199152740, 10398305480, 20796610960]

約数ペア:

[(1, 20796610960), (2, 10398305480), (4, 5199152740), (5, 4159322192), (8, 2599576370), (10, 2079661096), (16, 1299788185), (20, 1039830548), (40, 519915274), (79, 263248240), (80, 259957637), (137, 151800080), (158, 131624120), (274, 75900040), (316, 65812060), (395, 52649648), (548, 37950020), (632, 32906030), (685, 30360016), (790, 26324824), (1096, 18975010), (1264, 16453015), (1370, 15180008), (1580, 13162412), (2192, 9487505), (2740, 7590004), (3160, 6581206), (5480, 3795002), (6320, 3290603), (10823, 1921520), (10960, 1897501), (21646, 960760), (24019, 865840), (43292, 480380), (48038, 432920), (54115, 384304), (86584, 240190), (96076, 216460), (108230, 192152), (120095, 173168)]