80702720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{9007}}^1$

素因数の和:9035

約数の個数: 72

約数和(自身を含む): 220948224

約数和(自身を除く): 140245504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 9007, 18014, 36028, 45035, 63049, 72056, 90070, 126098, 144112, 180140, 252196, 288224, 315245, 360280, 504392, 576448, 630490, 720560, 1008784, 1152896, 1260980, 1441120, 2017568, 2305792, 2521960, 2882240, 4035136, 5043920, 5764480, 8070272, 10087840, 11528960, 16140544, 20175680, 40351360, 80702720]

約数ペア:

[(1, 80702720), (2, 40351360), (4, 20175680), (5, 16140544), (7, 11528960), (8, 10087840), (10, 8070272), (14, 5764480), (16, 5043920), (20, 4035136), (28, 2882240), (32, 2521960), (35, 2305792), (40, 2017568), (56, 1441120), (64, 1260980), (70, 1152896), (80, 1008784), (112, 720560), (128, 630490), (140, 576448), (160, 504392), (224, 360280), (256, 315245), (280, 288224), (320, 252196), (448, 180140), (560, 144112), (640, 126098), (896, 90070), (1120, 72056), (1280, 63049), (1792, 45035), (2240, 36028), (4480, 18014), (8960, 9007)]