84870940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7873}}^1$

素因数の和:7907

約数の個数: 72

約数和(自身を含む): 226204272

約数和(自身を除く): 141333332

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 7873, 10780, 15746, 31492, 39365, 55111, 78730, 86603, 110222, 157460, 173206, 220444, 275555, 346412, 385777, 433015, 551110, 606221, 771554, 866030, 1102220, 1212442, 1543108, 1732060, 1928885, 2424884, 3031105, 3857770, 4243547, 6062210, 7715540, 8487094, 12124420, 16974188, 21217735, 42435470, 84870940]

約数ペア:

[(1, 84870940), (2, 42435470), (4, 21217735), (5, 16974188), (7, 12124420), (10, 8487094), (11, 7715540), (14, 6062210), (20, 4243547), (22, 3857770), (28, 3031105), (35, 2424884), (44, 1928885), (49, 1732060), (55, 1543108), (70, 1212442), (77, 1102220), (98, 866030), (110, 771554), (140, 606221), (154, 551110), (196, 433015), (220, 385777), (245, 346412), (308, 275555), (385, 220444), (490, 173206), (539, 157460), (770, 110222), (980, 86603), (1078, 78730), (1540, 55111), (2156, 39365), (2695, 31492), (5390, 15746), (7873, 10780)]