87540280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{311}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 204871680

約数和(自身を除く): 117331400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 227, 248, 310, 311, 454, 620, 622, 908, 1135, 1240, 1244, 1555, 1816, 2270, 2488, 3110, 4540, 6220, 7037, 9080, 9641, 12440, 14074, 19282, 28148, 35185, 38564, 48205, 56296, 70370, 70597, 77128, 96410, 140740, 141194, 192820, 281480, 282388, 352985, 385640, 564776, 705970, 1411940, 2188507, 2823880, 4377014, 8754028, 10942535, 17508056, 21885070, 43770140, 87540280]

約数ペア:

[(1, 87540280), (2, 43770140), (4, 21885070), (5, 17508056), (8, 10942535), (10, 8754028), (20, 4377014), (31, 2823880), (40, 2188507), (62, 1411940), (124, 705970), (155, 564776), (227, 385640), (248, 352985), (310, 282388), (311, 281480), (454, 192820), (620, 141194), (622, 140740), (908, 96410), (1135, 77128), (1240, 70597), (1244, 70370), (1555, 56296), (1816, 48205), (2270, 38564), (2488, 35185), (3110, 28148), (4540, 19282), (6220, 14074), (7037, 12440), (9080, 9641)]