640761120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10853}}^1$

素因数の和:10915

約数の個数: 144

約数和(自身を含む): 2240135352

約数和(自身を除く): 1599374232

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 96, 120, 123, 144, 160, 164, 180, 205, 240, 246, 288, 328, 360, 369, 410, 480, 492, 615, 656, 720, 738, 820, 984, 1230, 1312, 1440, 1476, 1640, 1845, 1968, 2460, 2952, 3280, 3690, 3936, 4920, 5904, 6560, 7380, 9840, 10853, 11808, 14760, 19680, 21706, 29520, 32559, 43412, 54265, 59040, 65118, 86824, 97677, 108530, 130236, 162795, 173648, 195354, 217060, 260472, 325590, 347296, 390708, 434120, 444973, 488385, 520944, 651180, 781416, 868240, 889946, 976770, 1041888, 1302360, 1334919, 1562832, 1736480, 1779892, 1953540, 2224865, 2604720, 2669838, 3125664, 3559784, 3907080, 4004757, 4449730, 5209440, 5339676, 6674595, 7119568, 7814160, 8009514, 8899460, 10679352, 13349190, 14239136, 15628320, 16019028, 17798920, 20023785, 21358704, 26698380, 32038056, 35597840, 40047570, 42717408, 53396760, 64076112, 71195680, 80095140, 106793520, 128152224, 160190280, 213587040, 320380560, 640761120]

約数ペア:

[(1, 640761120), (2, 320380560), (3, 213587040), (4, 160190280), (5, 128152224), (6, 106793520), (8, 80095140), (9, 71195680), (10, 64076112), (12, 53396760), (15, 42717408), (16, 40047570), (18, 35597840), (20, 32038056), (24, 26698380), (30, 21358704), (32, 20023785), (36, 17798920), (40, 16019028), (41, 15628320), (45, 14239136), (48, 13349190), (60, 10679352), (72, 8899460), (80, 8009514), (82, 7814160), (90, 7119568), (96, 6674595), (120, 5339676), (123, 5209440), (144, 4449730), (160, 4004757), (164, 3907080), (180, 3559784), (205, 3125664), (240, 2669838), (246, 2604720), (288, 2224865), (328, 1953540), (360, 1779892), (369, 1736480), (410, 1562832), (480, 1334919), (492, 1302360), (615, 1041888), (656, 976770), (720, 889946), (738, 868240), (820, 781416), (984, 651180), (1230, 520944), (1312, 488385), (1440, 444973), (1476, 434120), (1640, 390708), (1845, 347296), (1968, 325590), (2460, 260472), (2952, 217060), (3280, 195354), (3690, 173648), (3936, 162795), (4920, 130236), (5904, 108530), (6560, 97677), (7380, 86824), (9840, 65118), (10853, 59040), (11808, 54265), (14760, 43412), (19680, 32559), (21706, 29520)]