79985920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 223695360

約数和(自身を除く): 143709440

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, 256, 280, 316, 320, 395, 448, 452, 553, 560, 565, 632, 640, 790, 791, 896, 904, 1106, 1120, 1130, 1264, 1280, 1580, 1582, 1792, 1808, 2212, 2240, 2260, 2528, 2765, 3160, 3164, 3616, 3955, 4424, 4480, 4520, 5056, 5530, 6320, 6328, 7232, 7910, 8848, 8927, 8960, 9040, 10112, 11060, 12640, 12656, 14464, 15820, 17696, 17854, 18080, 20224, 22120, 25280, 25312, 28928, 31640, 35392, 35708, 36160, 44240, 44635, 50560, 50624, 62489, 63280, 70784, 71416, 72320, 88480, 89270, 101120, 101248, 124978, 126560, 141568, 142832, 144640, 176960, 178540, 202496, 249956, 253120, 285664, 312445, 353920, 357080, 499912, 506240, 571328, 624890, 707840, 714160, 999824, 1012480, 1142656, 1249780, 1428320, 1999648, 2285312, 2499560, 2856640, 3999296, 4999120, 5713280, 7998592, 9998240, 11426560, 15997184, 19996480, 39992960, 79985920]

約数ペア:

[(1, 79985920), (2, 39992960), (4, 19996480), (5, 15997184), (7, 11426560), (8, 9998240), (10, 7998592), (14, 5713280), (16, 4999120), (20, 3999296), (28, 2856640), (32, 2499560), (35, 2285312), (40, 1999648), (56, 1428320), (64, 1249780), (70, 1142656), (79, 1012480), (80, 999824), (112, 714160), (113, 707840), (128, 624890), (140, 571328), (158, 506240), (160, 499912), (224, 357080), (226, 353920), (256, 312445), (280, 285664), (316, 253120), (320, 249956), (395, 202496), (448, 178540), (452, 176960), (553, 144640), (560, 142832), (565, 141568), (632, 126560), (640, 124978), (790, 101248), (791, 101120), (896, 89270), (904, 88480), (1106, 72320), (1120, 71416), (1130, 70784), (1264, 63280), (1280, 62489), (1580, 50624), (1582, 50560), (1792, 44635), (1808, 44240), (2212, 36160), (2240, 35708), (2260, 35392), (2528, 31640), (2765, 28928), (3160, 25312), (3164, 25280), (3616, 22120), (3955, 20224), (4424, 18080), (4480, 17854), (4520, 17696), (5056, 15820), (5530, 14464), (6320, 12656), (6328, 12640), (7232, 11060), (7910, 10112), (8848, 9040), (8927, 8960)]