39992960

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:218

約数の個数: 128

約数和(自身を含む): 111628800

約数和(自身を除く): 71635840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 79, 80, 112, 113, 128, 140, 158, 160, 224, 226, 280, 316, 320, 395, 448, 452, 553, 560, 565, 632, 640, 790, 791, 896, 904, 1106, 1120, 1130, 1264, 1580, 1582, 1808, 2212, 2240, 2260, 2528, 2765, 3160, 3164, 3616, 3955, 4424, 4480, 4520, 5056, 5530, 6320, 6328, 7232, 7910, 8848, 8927, 9040, 10112, 11060, 12640, 12656, 14464, 15820, 17696, 17854, 18080, 22120, 25280, 25312, 31640, 35392, 35708, 36160, 44240, 44635, 50560, 50624, 62489, 63280, 70784, 71416, 72320, 88480, 89270, 101248, 124978, 126560, 142832, 176960, 178540, 249956, 253120, 285664, 312445, 353920, 357080, 499912, 506240, 571328, 624890, 714160, 999824, 1142656, 1249780, 1428320, 1999648, 2499560, 2856640, 3999296, 4999120, 5713280, 7998592, 9998240, 19996480, 39992960]

約数ペア:

[(1, 39992960), (2, 19996480), (4, 9998240), (5, 7998592), (7, 5713280), (8, 4999120), (10, 3999296), (14, 2856640), (16, 2499560), (20, 1999648), (28, 1428320), (32, 1249780), (35, 1142656), (40, 999824), (56, 714160), (64, 624890), (70, 571328), (79, 506240), (80, 499912), (112, 357080), (113, 353920), (128, 312445), (140, 285664), (158, 253120), (160, 249956), (224, 178540), (226, 176960), (280, 142832), (316, 126560), (320, 124978), (395, 101248), (448, 89270), (452, 88480), (553, 72320), (560, 71416), (565, 70784), (632, 63280), (640, 62489), (790, 50624), (791, 50560), (896, 44635), (904, 44240), (1106, 36160), (1120, 35708), (1130, 35392), (1264, 31640), (1580, 25312), (1582, 25280), (1808, 22120), (2212, 18080), (2240, 17854), (2260, 17696), (2528, 15820), (2765, 14464), (3160, 12656), (3164, 12640), (3616, 11060), (3955, 10112), (4424, 9040), (4480, 8927), (4520, 8848), (5056, 7910), (5530, 7232), (6320, 6328)]