128458260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{379}}^1$

素因数の和:670

約数の個数: 144

約数和(自身を含む): 448156800

約数和(自身を除く): 319698540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 269, 315, 379, 420, 538, 630, 758, 807, 1076, 1137, 1260, 1345, 1516, 1614, 1883, 1895, 2274, 2421, 2653, 2690, 3228, 3411, 3766, 3790, 4035, 4548, 4842, 5306, 5380, 5649, 5685, 6822, 7532, 7580, 7959, 8070, 9415, 9684, 10612, 11298, 11370, 12105, 13265, 13644, 15918, 16140, 16947, 17055, 18830, 22596, 22740, 23877, 24210, 26530, 28245, 31836, 33894, 34110, 37660, 39795, 47754, 48420, 53060, 56490, 67788, 68220, 79590, 84735, 95508, 101951, 112980, 119385, 159180, 169470, 203902, 238770, 305853, 338940, 407804, 477540, 509755, 611706, 713657, 917559, 1019510, 1223412, 1427314, 1529265, 1835118, 2039020, 2140971, 2854628, 3058530, 3568285, 3670236, 4281942, 4587795, 6117060, 6422913, 7136570, 8563884, 9175590, 10704855, 12845826, 14273140, 18351180, 21409710, 25691652, 32114565, 42819420, 64229130, 128458260]

約数ペア:

[(1, 128458260), (2, 64229130), (3, 42819420), (4, 32114565), (5, 25691652), (6, 21409710), (7, 18351180), (9, 14273140), (10, 12845826), (12, 10704855), (14, 9175590), (15, 8563884), (18, 7136570), (20, 6422913), (21, 6117060), (28, 4587795), (30, 4281942), (35, 3670236), (36, 3568285), (42, 3058530), (45, 2854628), (60, 2140971), (63, 2039020), (70, 1835118), (84, 1529265), (90, 1427314), (105, 1223412), (126, 1019510), (140, 917559), (180, 713657), (210, 611706), (252, 509755), (269, 477540), (315, 407804), (379, 338940), (420, 305853), (538, 238770), (630, 203902), (758, 169470), (807, 159180), (1076, 119385), (1137, 112980), (1260, 101951), (1345, 95508), (1516, 84735), (1614, 79590), (1883, 68220), (1895, 67788), (2274, 56490), (2421, 53060), (2653, 48420), (2690, 47754), (3228, 39795), (3411, 37660), (3766, 34110), (3790, 33894), (4035, 31836), (4548, 28245), (4842, 26530), (5306, 24210), (5380, 23877), (5649, 22740), (5685, 22596), (6822, 18830), (7532, 17055), (7580, 16947), (7959, 16140), (8070, 15918), (9415, 13644), (9684, 13265), (10612, 12105), (11298, 11370)]