1625007440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{78427}}^1$

素因数の和:78484

約数の個数: 80

約数和(自身を含む): 4434632832

約数和(自身を除く): 2809625392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1036, 1295, 1480, 2072, 2590, 2960, 4144, 5180, 10360, 20720, 78427, 156854, 313708, 392135, 548989, 627416, 784270, 1097978, 1254832, 1568540, 2195956, 2744945, 2901799, 3137080, 4391912, 5489890, 5803598, 6274160, 8783824, 10979780, 11607196, 14508995, 20312593, 21959560, 23214392, 29017990, 40625186, 43919120, 46428784, 58035980, 81250372, 101562965, 116071960, 162500744, 203125930, 232143920, 325001488, 406251860, 812503720, 1625007440]

約数ペア:

[(1, 1625007440), (2, 812503720), (4, 406251860), (5, 325001488), (7, 232143920), (8, 203125930), (10, 162500744), (14, 116071960), (16, 101562965), (20, 81250372), (28, 58035980), (35, 46428784), (37, 43919120), (40, 40625186), (56, 29017990), (70, 23214392), (74, 21959560), (80, 20312593), (112, 14508995), (140, 11607196), (148, 10979780), (185, 8783824), (259, 6274160), (280, 5803598), (296, 5489890), (370, 4391912), (518, 3137080), (560, 2901799), (592, 2744945), (740, 2195956), (1036, 1568540), (1295, 1254832), (1480, 1097978), (2072, 784270), (2590, 627416), (2960, 548989), (4144, 392135), (5180, 313708), (10360, 156854), (20720, 78427)]