161225680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3739}}^1$

素因数の和:3777

約数の個数: 120

約数和(自身を含む): 475817760

約数和(自身を除く): 314592080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 176, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 980, 1078, 1232, 1540, 1960, 2156, 2695, 3080, 3739, 3920, 4312, 5390, 6160, 7478, 8624, 10780, 14956, 18695, 21560, 26173, 29912, 37390, 41129, 43120, 52346, 59824, 74780, 82258, 104692, 130865, 149560, 164516, 183211, 205645, 209384, 261730, 287903, 299120, 329032, 366422, 411290, 418768, 523460, 575806, 658064, 732844, 822580, 916055, 1046920, 1151612, 1439515, 1465688, 1645160, 1832110, 2015321, 2093840, 2303224, 2879030, 2931376, 3290320, 3664220, 4030642, 4606448, 5758060, 7328440, 8061284, 10076605, 11516120, 14656880, 16122568, 20153210, 23032240, 32245136, 40306420, 80612840, 161225680]

約数ペア:

[(1, 161225680), (2, 80612840), (4, 40306420), (5, 32245136), (7, 23032240), (8, 20153210), (10, 16122568), (11, 14656880), (14, 11516120), (16, 10076605), (20, 8061284), (22, 7328440), (28, 5758060), (35, 4606448), (40, 4030642), (44, 3664220), (49, 3290320), (55, 2931376), (56, 2879030), (70, 2303224), (77, 2093840), (80, 2015321), (88, 1832110), (98, 1645160), (110, 1465688), (112, 1439515), (140, 1151612), (154, 1046920), (176, 916055), (196, 822580), (220, 732844), (245, 658064), (280, 575806), (308, 523460), (385, 418768), (392, 411290), (440, 366422), (490, 329032), (539, 299120), (560, 287903), (616, 261730), (770, 209384), (784, 205645), (880, 183211), (980, 164516), (1078, 149560), (1232, 130865), (1540, 104692), (1960, 82258), (2156, 74780), (2695, 59824), (3080, 52346), (3739, 43120), (3920, 41129), (4312, 37390), (5390, 29912), (6160, 26173), (7478, 21560), (8624, 18695), (10780, 14956)]