20165607904

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1\times {\mathrm{2591}}^1$

素因数の和:3020

約数の個数: 96

約数和(自身を含む): 43701928704

約数和(自身を除く): 23536320800

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 53, 104, 106, 208, 212, 353, 416, 424, 689, 706, 848, 1378, 1412, 1696, 2591, 2756, 2824, 4589, 5182, 5512, 5648, 9178, 10364, 11024, 11296, 18356, 18709, 20728, 22048, 33683, 36712, 37418, 41456, 67366, 73424, 74836, 82912, 134732, 137323, 146848, 149672, 243217, 269464, 274646, 299344, 486434, 538928, 549292, 598688, 914623, 972868, 1077856, 1098584, 1785199, 1829246, 1945736, 2197168, 3570398, 3658492, 3891472, 4394336, 7140796, 7316984, 7782944, 11890099, 14281592, 14633968, 23780198, 28563184, 29267936, 47560396, 48475019, 57126368, 95120792, 96950038, 190241584, 193900076, 380483168, 387800152, 630175247, 775600304, 1260350494, 1551200608, 2520700988, 5041401976, 10082803952, 20165607904]

約数ペア:

[(1, 20165607904), (2, 10082803952), (4, 5041401976), (8, 2520700988), (13, 1551200608), (16, 1260350494), (26, 775600304), (32, 630175247), (52, 387800152), (53, 380483168), (104, 193900076), (106, 190241584), (208, 96950038), (212, 95120792), (353, 57126368), (416, 48475019), (424, 47560396), (689, 29267936), (706, 28563184), (848, 23780198), (1378, 14633968), (1412, 14281592), (1696, 11890099), (2591, 7782944), (2756, 7316984), (2824, 7140796), (4589, 4394336), (5182, 3891472), (5512, 3658492), (5648, 3570398), (9178, 2197168), (10364, 1945736), (11024, 1829246), (11296, 1785199), (18356, 1098584), (18709, 1077856), (20728, 972868), (22048, 914623), (33683, 598688), (36712, 549292), (37418, 538928), (41456, 486434), (67366, 299344), (73424, 274646), (74836, 269464), (82912, 243217), (134732, 149672), (137323, 146848)]