20190940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1873}}^1$

素因数の和:1907

約数の個数: 72

約数和(自身を含む): 53836272

約数和(自身を除く): 33645332

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, 1873, 2156, 2695, 3746, 5390, 7492, 9365, 10780, 13111, 18730, 20603, 26222, 37460, 41206, 52444, 65555, 82412, 91777, 103015, 131110, 144221, 183554, 206030, 262220, 288442, 367108, 412060, 458885, 576884, 721105, 917770, 1009547, 1442210, 1835540, 2019094, 2884420, 4038188, 5047735, 10095470, 20190940]

約数ペア:

[(1, 20190940), (2, 10095470), (4, 5047735), (5, 4038188), (7, 2884420), (10, 2019094), (11, 1835540), (14, 1442210), (20, 1009547), (22, 917770), (28, 721105), (35, 576884), (44, 458885), (49, 412060), (55, 367108), (70, 288442), (77, 262220), (98, 206030), (110, 183554), (140, 144221), (154, 131110), (196, 103015), (220, 91777), (245, 82412), (308, 65555), (385, 52444), (490, 41206), (539, 37460), (770, 26222), (980, 20603), (1078, 18730), (1540, 13111), (1873, 10780), (2156, 9365), (2695, 7492), (3746, 5390)]