17880940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{683}}^1$

素因数の和:727

約数の個数: 96

約数和(自身を含む): 49641984

約数和(自身を除く): 31761044

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 55, 68, 70, 77, 85, 110, 119, 140, 154, 170, 187, 220, 238, 308, 340, 374, 385, 476, 595, 683, 748, 770, 935, 1190, 1309, 1366, 1540, 1870, 2380, 2618, 2732, 3415, 3740, 4781, 5236, 6545, 6830, 7513, 9562, 11611, 13090, 13660, 15026, 19124, 23222, 23905, 26180, 30052, 37565, 46444, 47810, 52591, 58055, 75130, 81277, 95620, 105182, 116110, 127721, 150260, 162554, 210364, 232220, 255442, 262955, 325108, 406385, 510884, 525910, 638605, 812770, 894047, 1051820, 1277210, 1625540, 1788094, 2554420, 3576188, 4470235, 8940470, 17880940]

約数ペア:

[(1, 17880940), (2, 8940470), (4, 4470235), (5, 3576188), (7, 2554420), (10, 1788094), (11, 1625540), (14, 1277210), (17, 1051820), (20, 894047), (22, 812770), (28, 638605), (34, 525910), (35, 510884), (44, 406385), (55, 325108), (68, 262955), (70, 255442), (77, 232220), (85, 210364), (110, 162554), (119, 150260), (140, 127721), (154, 116110), (170, 105182), (187, 95620), (220, 81277), (238, 75130), (308, 58055), (340, 52591), (374, 47810), (385, 46444), (476, 37565), (595, 30052), (683, 26180), (748, 23905), (770, 23222), (935, 19124), (1190, 15026), (1309, 13660), (1366, 13090), (1540, 11611), (1870, 9562), (2380, 7513), (2618, 6830), (2732, 6545), (3415, 5236), (3740, 4781)]