82154380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7621}}^1$

素因数の和:7655

約数の個数: 72

約数和(自身を含む): 218964816

約数和(自身を除く): 136810436

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, 7621, 10780, 15242, 30484, 38105, 53347, 76210, 83831, 106694, 152420, 167662, 213388, 266735, 335324, 373429, 419155, 533470, 586817, 746858, 838310, 1066940, 1173634, 1493716, 1676620, 1867145, 2347268, 2934085, 3734290, 4107719, 5868170, 7468580, 8215438, 11736340, 16430876, 20538595, 41077190, 82154380]

約数ペア:

[(1, 82154380), (2, 41077190), (4, 20538595), (5, 16430876), (7, 11736340), (10, 8215438), (11, 7468580), (14, 5868170), (20, 4107719), (22, 3734290), (28, 2934085), (35, 2347268), (44, 1867145), (49, 1676620), (55, 1493716), (70, 1173634), (77, 1066940), (98, 838310), (110, 746858), (140, 586817), (154, 533470), (196, 419155), (220, 373429), (245, 335324), (308, 266735), (385, 213388), (490, 167662), (539, 152420), (770, 106694), (980, 83831), (1078, 76210), (1540, 53347), (2156, 38105), (2695, 30484), (5390, 15242), (7621, 10780)]